harcourt math challenge workbook grade 2 teachers edition
DESCRIPTION
Harcourt Math Challenge Workbook Grade 2 Teachers EditionTRANSCRIPT
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ChallengeWorkbook
T E A C H E R S E D I T I O NGrade 2
Orlando Boston Dallas Chicago San Diegowww.harcourtschool.com
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Copyright by Harcourt, Inc.
All rights reserved. No part of this publication may be reproduced or transmitted in anyform or by any means, electronic or mechanical, including photocopy, recording, or anyinformation storage and retrieval system, without permission in writing from thepublisher.
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HARCOURT and the Harcourt Logo are trademarks of Harcourt, Inc.
Printed in the United States of America
ISBN 0-15-320672-1
2 3 4 5 6 7 8 9 10 082 2004 2003 2002 2001
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Unit 1: ADDITION AND SUBTRACTIONSTRATEGIES AND FACTS, PLACEVALUE, AND GRAPHING
Chapter 1: Addition Strategies1.1 Order and Zero Properties . . . . . . . . 11.2 Count On 1, 2, and 3 . . . . . . . . . . . . . 21.3 More Doubles . . . . . . . . . . . . . . . . . . 31.4 Make a Ten . . . . . . . . . . . . . . . . . . . . . 41.5 Add Three Numbers . . . . . . . . . . . . . 51.6 Problem Solving Mystery
Numbers! . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2: Subtraction Strategies2.1 All or Nothing . . . . . . . . . . . . . . . . . . 72.2 Count Back with Arrows . . . . . . . . . 82.3 Add or Subtract? . . . . . . . . . . . . . . . . 92.4 Fact Family Fun . . . . . . . . . . . . . . . . 102.5 Express Yourself! . . . . . . . . . . . . . . . 11
Chapter 3: Addition and SubtractionPractice3.1 Puzzler . . . . . . . . . . . . . . . . . . . . . . . . 123.2 Furnish the Facts . . . . . . . . . . . . . . . 133.3 Break the Code . . . . . . . . . . . . . . . . 143.4 Problem Solving Missing
Information . . . . . . . . . . . . . . . . . . . . 15
Chapter 4: Numbers to 1004.1 Fruit by the Numbers . . . . . . . . . . . 164.2 Riddles with Tens and Ones . . . . . 174.3 Place Me . . . . . . . . . . . . . . . . . . . . . . 184.4 Number Match . . . . . . . . . . . . . . . . . 194.5 Marble Madness . . . . . . . . . . . . . . . 20
Chapter 5: Number Patterns, Compareand Order5.1 Book Hunt . . . . . . . . . . . . . . . . . . . . . 215.2 Greater Than, Less Than,
Equal To . . . . . . . . . . . . . . . . . . . . . . . 22
5.3 Where Am I? . . . . . . . . . . . . . . . . . . . 235.4 Number Shape Up . . . . . . . . . . . . . 245.5 Arrow Count . . . . . . . . . . . . . . . . . . 255.6 Patterns in Charts . . . . . . . . . . . . . . 26
Chapter 6: Data and Graphing6.1 Sky Graph . . . . . . . . . . . . . . . . . . . . . 276.2 Leaf Collection . . . . . . . . . . . . . . . . 286.3 Veggies, Veggies . . . . . . . . . . . . . . . . 296.4 Food Favorites . . . . . . . . . . . . . . . . . 306.5 Book Data . . . . . . . . . . . . . . . . . . . . . 316.6 Reading for Ribbons! . . . . . . . . . . . 32
Unit 2: MONEY AND TIME
Chapter 7: Counting Money7.1 More or Less Money . . . . . . . . . . . . 337.2 The Same Amount . . . . . . . . . . . . . 347.3 Money in the Bank . . . . . . . . . . . . . 357.4 Money Trees . . . . . . . . . . . . . . . . . . . 367.5 School Supply Store . . . . . . . . . . . . 37
Chapter 8: Using Money8.1 50 All . . . . . . . . . . . . . . . . . . . . . . . . 388.2 Coin Puzzles . . . . . . . . . . . . . . . . . . . 398.3 What Can I Buy? . . . . . . . . . . . . . . . 408.4 Get Money Back . . . . . . . . . . . . . . . 418.5 Ways to Make 25 . . . . . . . . . . . . . . 42
Chapter 9: Telling Time9.1 Time Trail . . . . . . . . . . . . . . . . . . . . . 439.2 Hour After Hour . . . . . . . . . . . . . . . 449.3 After and Before . . . . . . . . . . . . . . . 459.4 Please Tell Me the Time! . . . . . . . . 46
Chapter 10: Understanding Time10.1 Activities of the Day . . . . . . . . . . . 4710.2 Elapsed Time . . . . . . . . . . . . . . . . . . 4810.3 Circle the Dates . . . . . . . . . . . . . . . 4910.4 Write the Time . . . . . . . . . . . . . . . . 5010.5 Order Time . . . . . . . . . . . . . . . . . . . . 51
CONTENTS
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Unit 3: 2-DIGIT ADDITION ANDSUBTRACTION
Chapter 11: Explore 2-Digit Addition11.1 Facts and Addition of Tens . . . . . . 5211.2 Hidden Numbers . . . . . . . . . . . . . . . 5311.3 Addition Estimates . . . . . . . . . . . . . 5411.4 Addition Story Problems . . . . . . . . 5511.5 Zoo Story . . . . . . . . . . . . . . . . . . . . . 56
Chapter 12: 2-Digit Addition12.1 Circus Algebra . . . . . . . . . . . . . . . . . 5712.2 Colorful Addition . . . . . . . . . . . . . . 5812.3 What Is Missing? . . . . . . . . . . . . . . . 5912.4 Matching Estimates . . . . . . . . . . . . 60
Chapter 13: Practice 2-Digit Addition13.1 Balloon Addition . . . . . . . . . . . . . . . 6113.2 Mental Matching . . . . . . . . . . . . . . . 6213.3 Addition Rainbow . . . . . . . . . . . . . . 6313.4 Graphing Around the World . . . . . 64
Chapter 14: Explore 2-Digit Subtraction14.1 Missing Tens . . . . . . . . . . . . . . . . . . . 6514.2 Tens or Ones? . . . . . . . . . . . . . . . . . 6614.3 Names for Numbers . . . . . . . . . . . . 6714.4 Subtraction Zoo . . . . . . . . . . . . . . . 6814.5 Dragon Subtraction . . . . . . . . . . . . 69
Chapter 15: 2-Digit Subtraction15.1 Cross Over . . . . . . . . . . . . . . . . . . . . 7015.2 Riddle Time . . . . . . . . . . . . . . . . . . . 7115.3 Which Way? . . . . . . . . . . . . . . . . . . . 7215.4 About How Many Stickers? . . . . . . 7315.5 House of Numbers . . . . . . . . . . . . . 74
Chapter 16: Practice 2-Digit Subtraction16.1 Short Cuts . . . . . . . . . . . . . . . . . . . . . 7516.2 What Is It? . . . . . . . . . . . . . . . . . . . . 7616.3 At the Market . . . . . . . . . . . . . . . . . 7716.4 Shopping Trip . . . . . . . . . . . . . . . . . . 78
Unit 4: GEOMETRY ANDMEASUREMENT
Chapter 17: Plane Shapes17.1 Picture Shapes . . . . . . . . . . . . . . . . . 7917.2 Match the Sides . . . . . . . . . . . . . . . 8017.3 More Symmetry . . . . . . . . . . . . . . . . 8117.4 Triangle Challenge . . . . . . . . . . . . . 8217.5 Make Them Fit . . . . . . . . . . . . . . . . . 8317.6 Move It! . . . . . . . . . . . . . . . . . . . . . . 84
Chapter 18: Solid Figures18.1 Will It Stack? . . . . . . . . . . . . . . . . . . 8518.2 Shape Trace . . . . . . . . . . . . . . . . . . . 8618.3 Riddle . . . . . . . . . . . . . . . . . . . . . . . . 8718.4 Build Your Own . . . . . . . . . . . . . . . . 88
Chapter 19: Length19.1 From the Top . . . . . . . . . . . . . . . . . . 8919.2 Long Lines, Short Lines . . . . . . . . . 9019.3 Feet and Inches Together . . . . . . . . 9119.4 Know the Ropes! . . . . . . . . . . . . . . . 9219.5 Comparing Perimeters . . . . . . . . . . 9319.6 Give an Inch . . . . . . . . . . . . . . . . . . . 94
Chapter 20: Capacity, Weight, andTemperature20.1 Liquid Measure . . . . . . . . . . . . . . . . 9520.2 The Water Machine . . . . . . . . . . . . 9620.3 Balancing Act . . . . . . . . . . . . . . . . . . 9720.4 Puzzle Time . . . . . . . . . . . . . . . . . . . 9820.5 The Weather Outside . . . . . . . . . . 9920.6 What Can You Measure? . . . . . . . 100
Unit 5: NUMBER SENSE ANDFRACTIONS
Chapter 21: Numbers to 1,00021.1 Hundreds Match . . . . . . . . . . . . . . 10121.2 Change the Model . . . . . . . . . . . . 10221.3 Number Scramble . . . . . . . . . . . . . 10321.4 Place Value Riddles . . . . . . . . . . . . 10421.5 Solve the Mystery . . . . . . . . . . . . . 105
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Chapter 22: Comparing and OrderingNumbers to 1,00022.1 Addition and Subtraction of
Hundreds . . . . . . . . . . . . . . . . . . . . 10622.2 Number Cube Roll . . . . . . . . . . . . 10722.3 Missing Numbers . . . . . . . . . . . . . . 10822.4 Missing Numbers in Patterns . . . 10922.5 Problem Solving Write
the Rule . . . . . . . . . . . . . . . . . . . . . . 110
Chapter 23: Parts of a Whole23.1 Drawing Parts . . . . . . . . . . . . . . . . . . 11123.2 Finding Fractions . . . . . . . . . . . . . . 11223.3 Fabulous Fractions . . . . . . . . . . . . . 11323.4 Which Is Greater? . . . . . . . . . . . . . 11423.5 How Much More? . . . . . . . . . . . . . . 115
Chapter 24: Parts of a Group24.1 Show the Same Fraction . . . . . . . . 11624.2 Show Ways to Share . . . . . . . . . . . 11724.3 Animal Fractions . . . . . . . . . . . . . . 11824.4 Compare Fractions
Everywhere . . . . . . . . . . . . . . . . . . . 11924.5 Problem Solving Compare
Fractions of Food . . . . . . . . . . . . . 120
Unit 6: 3-DIGIT ADDITION ANDSUBTRACTION, MULTIPLICATION ANDDIVISION
Chapter 25: Adding 3-Digit Numbers25.1 Hundreds and More . . . . . . . . . . . . 12125.2 How Many Flowers? . . . . . . . . . . . 12225.3 3-Digit Addition . . . . . . . . . . . . . . 12325.4 Help the Frog Find the Pond . . . . 12425.5 Add Dollars and Cents . . . . . . . . . 12525.6 An Adding Pattern . . . . . . . . . . . . . 126
Chapter 26: Subtracting 3-Digit Numbers26.1 Subtraction Secret . . . . . . . . . . . . 12726.2 3-Digit Code . . . . . . . . . . . . . . . . . . 12826.3 Raining Hundreds . . . . . . . . . . . . . 12926.4 3-Digit Message . . . . . . . . . . . . . . . 13026.5 Whats Missing? . . . . . . . . . . . . . . . . 131
Chapter 27: Use Addition andSubtraction27.1 Lets Go Shopping! . . . . . . . . . . . . . 13227.2 Estimating Costs . . . . . . . . . . . . . . . 13327.3 Adding and Subtracting Fish . . . . 13427.4 Problem Solving One Step
at a Time . . . . . . . . . . . . . . . . . . . . . 135
Chapter 28: Multiplication Concepts28.1 Team Players . . . . . . . . . . . . . . . . . . 13628.2 Two Ways . . . . . . . . . . . . . . . . . . . . . 13728.3 Making Arrays . . . . . . . . . . . . . . . . . 13828.4 Related Multiplication Facts . . . . 13928.5 Find the X-it . . . . . . . . . . . . . . . . . . 140
Chapter 29: Multiplication Facts 2, 5, and 1029.1 Draw to Multiply . . . . . . . . . . . . . . 14129.2 Groups of 5 . . . . . . . . . . . . . . . . . . . 14229.3 Multiply with 10 . . . . . . . . . . . . . . . 14329.4 Number Roll . . . . . . . . . . . . . . . . . . 144
Chapter 30: Division Concepts30.1 Draw Equal Shares . . . . . . . . . . . . . 14530.2 Find Equal Groups . . . . . . . . . . . . . 14630.3 Divide to Solve . . . . . . . . . . . . . . . 14730.4 Problem Solving Write the
Number Sentence . . . . . . . . . . . . . 14830.5 Problem Solving Division
Strategies . . . . . . . . . . . . . . . . . . . . 149
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NameLESSON 1.1
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Challenge CW1
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Order and Zero PropertiesWrite the sum.
Then write the addition sentence another way.
1. 2 + 3 =
+ =
3. 6 + 1 =
+ =
5. 0 + 5 =
+ =
7. 1 + 4 =
+ =
9. 7 + 3 =
+ =
2. 4 + 5 =
+ =
4. 7 + 0 =
+ =
6. 2 + 5 =
+ =
8. 8 + 2 =
+ =
10. 0 + 1 =
+ = 101
1
1082
10
725
7
770
7
945
9
1073
10
514
5
505
5
761
7
523
5
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NameLESSON 1.2
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CW2 Challenge
Count On 1, 2, and 3Write the addition sentences.
1.7
2.3
3.5
4.
6
5.4
6.2
7.1
8.7
Count on 1.
+ =
+ =
+ =
+ =
+ =
+ =
+ =
+ = 817
211
312
514
716
615
413
817
Count on 2.
+ =
+ =
+ =
+ =
+ =
+ =
+ =
+ = 927
321
422
624
826
725
523
927
Count on 3.
+ =
+ =
+ =
+ =
+ =
+ =
+ =
+ = 1037
431
532
734
936
835
633
1037
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Challenge CW3
More DoublesThe first day Beth collected 1 shell. Each dayafter that, she collected double the numbershe collected the day before, plus 1. Color inthe graph to show how many shells shecollected.
How many shells did Beth collect on Day 4? shells15
NameLESSON 1.3
Number of Shells Collected
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Day 1
Day 2
Day 3
Day 4
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NameLESSON 1.4
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CW4 Challenge
Make a TenWrite the sum. Use the code to solve the word puzzle.
1. 2. 3. 4.
5. 6. 7. 8. 9.
10. 11. 12. 13. 14. 4+ 2
6
4+ 4
8
7+ 411
6+ 3
9
8+ 513
3+ 4
7
9+ 615
8+ 816
5+ 914
5+ 510
9+ 817
6+ 713
7+ 512
8+ 311
6 7 8 9 10 11 12 13 14 15 16 !17
! N E O I M A T S U F H
1. 2. 3. 4.
M A T
5. 6. 7. 8. 9.
10.!
11. 12. 13. 14.
H I S F U N
T O !EM
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NameLESSON 1.5
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Challenge CW5
Add Three NumbersUse three number cubes.Work with a friend.Roll to make addends.Write the sum.
Roll 1 Roll 2 Roll 3 Sum
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Answers will vary.
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NameLESSON 1.6
1. The sum is 16.The first number is 7.What is the other number?
3. A number is subtracted from16. The difference is 7. What is the number?
5. The subtracted number is 4. The difference is 8. What is the other number?
2. The sum is 14.The first number is 8.What is the other number?
4. A number is subtracted from13. The difference is 5.What is the number?
6. The subtracted number is 6.The difference is 9.What is the other number?
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CW6 Challenge
Problem Solving Mystery Numbers!Solve.
+
7
169 +
8
146
16
79
13
58
48
12
69
15
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NameLESSON 2.1
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Challenge CW7
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All or NothingWrite a zero in the number sentence.Then complete the sentence.Draw a picture to show.
1. 8 =
2. 4 =
3. 9 =
4. 3 =
5. 6 = 60
30
09
40
08
Answers will vary.Possible answers aregiven.
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CW8 Challenge
Count Back with ArrowsFollow the arrows. Count back.
means count back 1.means count back 2.means count back 3.
NameLESSON 2.2
1. 8
2.
10
3. 9
4.
4
5.
58
26
125
57
26
3479
47
6
Answers will vary; one possibility shown.
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Challenge CW9
Add or Subtract?Write the addition or subtraction sentence. Solve.
NameLESSON 2.3
1. Li has 8 pens. Brad had 15 pensShe bought 7 more. He gave away 7.How many pens How many pensdoes she have now? does he have left?
= =
2. Marco had 9 shells. Maria had 18 shells.He found 9 more. She gave 9 to herHow many shells friends. How many shellsdoes Marco have now? does Maria have now?
= =
3. Tamika had 9 stamps. Gino had 14 stamps.Then she got 5 more. He gave 5 away. How manyHow many stamps stamps does he have left?does she have in all?
= = 95141459
99181899
8715157+8
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NameLESSON 2.4
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CW10 Challenge
Fact Family FunCut out and mix up the number cards. Place them face down in 2 piles. Pick one card from each pile. Write the numbers in the boxes. Complete the fact family. Answers will vary.
1. + = =
+ = =
2. + = =
+ = =
3. + = =
+ = =
4. + = =
+ = =
5 6 7 8 9
5 6 7 8 9
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Challenge CW11
Express Yourself!The sum of the numbers on each floorequals the number on top. Write themissing addends.
1. 2.
NameLESSON 2.5
2 + 2
1 + 3
4 + 0
1
4
3 +
0 +
21 + + 1
21 + 1 +
+ 1 + 11 1+
4
+ 12 1+
Check childrenswork. The sum ofeach row ofnumbers is thenumber at the top.
3 + 22 + 3
1 + 4
0 + 5
1 + 2+ 2
2 + 1 + 2
3 + 1 + 1
+ 12 + 1 1+
1 + 1 + 1 + 1 1+
5
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CW12 Challenge
Puzzler Answers will vary. Some possible answers are given.Each line must have a sum of 13.Write 1, 2, 3, 4, 5, 6, 7, or 8 in each circle. For each puzzle, use a numberonly once.
1. 2.
3. 4.
NameLESSON 3.1
4
6
2 83
2
6
7 15
3
6
8 14
3
4
5 26
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Challenge CW13
Furnish the Facts Write addition sentences.
NameLESSON 3.2
Answers will vary.
1. Use doubles.
+ =
+ =
+ =
3. Use doubles minus 1.
+ =
+ =
+ =
5. Count on 2.
+ =
+ =
+ =
2. Use doubles plus 1.
+ =
+ =
+ =
4. Count on 1.
+ =
+ =
+ =
6. Count on 3.
+ =
+ =
+ =
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CW14 Challenge
Break the CodeEach letter stands for either 0, 2, 4, or 6. Add or subtract to break the code.
1. 2. 3.
4. 5. 6.
NameLESSON 3.3
B
+B
C 4
2
2 B
+D
B 2
0
2 C
D
C 4
0
4
B
+C
A 6
4
2 A
D
A 6
0
6 A
C
B 2
4
6
Code BoxA=B=C=D= 0
426
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Challenge CW15
Problem Solving: Missing Information Work with a partner. Is anything missing? If so, write what you need to know. If not, write the number sentence.
1. There are 16 red flowers.There are yellow flowers, too.How many flowers are there in all?
I need to know
+ = flowers
2. Jenny has 6 red shirts and 5 green shirts.How many shirts does she have?
I need to know
+ = shirts
3. Garrett has 6 grapes.He ate some of them.How many grapes does he have left?
I need to know
+ = grapes
111156
NameLESSON 3.4
how many grapes he ate.
how many yellow flowers there are.
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CW16 Challenge
Fruit by the NumbersWhich is greater?Circle the number or the picture.
1.
2.
3.
4.
5.
NameLESSON 4.1
or 70
or 20
or 40
or 50
or 80
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Challenge CW17
Riddles with Tens and OnesWritw the number.
NameLESSON 4.2
1. I have 6 tens. I have 7 ones.What number am I?
3. I have 3 more tens than 27.What number am I?
5. I have 2 less tens than 65.What number am I?
7. I have 1 less ten and 1 moreone than 33. What numberam I?
2. I have 8 ones. I have 5tens. What number am I?
4. I have 6 more ones than51. What number am I?
6. I have 3 less ones than 76.What number am I?
8. I have 2 more tens and 5less ones than 39. Whatnumber am I?
54
73
57
58
24
45
57
67
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CW18 Challenge
Place Me
NameLESSON 4.3
1. Write a number whose tensdigit is 3 more than itsones digit.
3. Write a number whose tensdigit is one less than itsones digit.
5. Write a number whose tensdigit is less than its ones digit.
2. Write a number whoseones digit is 5 more thanits tens digit.
4. Write a number whoseones digit is 2 less thanits tens digit.
6. Write a number whoseones digit is less thanits tens digit.
91
75
27
19
34
52
Answers will vary. Possibilities shown.
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Challenge CW19
Number MatchRead the number. Match.
1. eighteen
2. fifty-seven
3. seventy-five
4. thirty-four
5. eighty-nine
6. forty-three
7. ninety-eight
NameLESSON 4.4
3 tens 4 ones
18
50 7
4 tens 3 ones
98
70 5
89
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CW20 Challenge
Marble Madness
This jar has about 40 marbles.
Write an estimate.
NameLESSON 4.5
1.
about marbles
3.
about marbles
5.
about marbles
2.
about marbles
4.
about marbles
6.
about marbles70
25
80
30
60
20
Answers will vary. Possibilities are shown.
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Challenge CW21
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LESSON 5.1
Book Hunt
In which book could you read about each animal?Circle the correct answer.
1.
first ninth sixteenthrabbits
2.
second sixth tenthfrogs
3.
fourth eleventh eighteenthturtles
4.
fifteenth twelfth twentiethzebras
5.
tenth eighth thirteenthkangaroos
6.
seventh third eleventhcats
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NameLESSON 5.2
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CW22 Challenge
Greater Than, Less Than, Equal ToWrite , , or to make a true sentence.
1. 2.
7 6 14 8 8 16
3. 4.
12 13 19 6 9 12
5. 6.
4 9 8 11 9 21
7. 8.
15 7 8 8 4 7 3
9. 10.
14 8 1 17 8 12
11. 12.
15 7 5 17 9 8
13. 14.
34 10 22 25 14 19
15. 16.
27 13 40 66 33 33
>
>
>>
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Where Am I?Read the riddle. Write the answer.
NameLESSON 5.3
1. I am the number that comesbefore 29 and after 27. Whatnumber am I?
3. I am the number that comesbefore 38 and after 36. Whatnumber am I?
5. These numbers comebetween 78 and 83. Whatnumbers are they?
, , ,
7. These numbers come after91 and before 95. Whatnumbers are they?
, ,
2. I am the number that comesbetween 45 and 47. Whatnumber am I?
4. I am the number that comesbetween 78 and 80. Whatnumber am I?
6. These numbers come before57 and after 53. Whatnumbers are they?
, ,
8. These numbers comebetween 40 and 44. Whatnumbers are they?
, , 434241
565554
79
46
949392
82818079
37
28
Challenge CW23
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NameLESSON 5.4
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CW24 Challenge
Number Shape Up
Use the clues to answer the riddle.Then circle even or odd.
1. This number is inside thesquare. It is also inside thetriangle. What number is it?
even odd
3. This number is inside thetriangle. The number isgreater than 9. What numberis it?
even odd
2. This number is inside only thecircle. The number is lessthan 5. What number is it?
even odd
4. This number is inside thesquare. It is also inside thecircle. The number is greaterthan 6. What number is it?
even odd
7
2
10
6
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Name
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Challenge CW25
Arrow Count
means 2 more means 3 more
means 4 more means 5 more
means 10 more
Follow the arrows to fill in the boxes.
1.
2.
3.
383526215
483330119
2924205
2722101
36341813
2422108start
start
start
finish
finish
finish
LESSON 5.5
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NameLESSON 5.6
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CW26 Challenge
Patterns in ChartsComplete the charts.Use the charts to answer the questions.
1. Travis wants to buy 5 toy cars. How much money does he need?
2. Whitney wants to buy 7 toy cars.How much money does she need?
3. Jade has 80. How many toy cars can she buy? toy cars
1. How many shoes do 4 children need?
2. There are 6 shoes. How many children will wear them?
3. There are 14 shoes. Howmany children will wear them?
4. How many shoes do 5 children need? 10 shoes
7 children
3 children
8 shoes
8
70
50
1 2 3 4 5 6 7 8
10 20 30 40 50 60 70 80
number ofchildren 1 2 3 4 5 6 7 8
number ofshoes 2 4 6 8 10 12 14 16
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Challenge CW27
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LESSON 6.1
Sky GraphThe graph shows what Heather saw inthe sky during one week.
Write questions about the graph.Give them to a classmate to answer.
Questions andanswers will vary.
What Heather Saw in the Sky
hot-air balloons
helicopters
airplanes
blimps
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NameLESSON 6.2
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CW28 Challenge
Leaf CollectionThis bar graph shows how many leaves childrencollected for a science project.
1. How many leaves did Beth collect? leaves
2. How many more leaves did Lanicollect than Felix? more leaves
3. How many leaves did Beth and Raycollect altogether? leaves
4. How many leaves did Lani and Felixcollect altogether? leaves
5. Make up a question about the graph. Give it to a classmate toanswer.
55
45
15
20
Leaves Collected
Beth
Lani
Felix
Ray0 5 10 15 20 25 30 35
Questions and answers will vary.
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NameLESSON 6.3
Challenge CW29
1. How many in all like broccoli or peas the best?
+ = in all
2. How many more chose carrots than peas?
= more
3. How many in all like peas, corn, or broccoli the best?
+ + = in all
4. Use the graph. Write a question for each number sentence.
6 + 4 = 10
13643
437
936
Our Favorite Vegetables
corn
carrots
broccoli
peas
Our Favorite Vegetablescorn
carrots
broccoli
peas
0 1 2 3 4 5 6 7 8
Veggies, VeggiesUse the tally table to make a graph.Use the graph to answer the questions.
4 3 = 1
Questions will vary. Possible answers are given.
How many in all like broccoli or corn?
How many more like corn than peas?
-
Food FavoritesAsk 10 classmates these questions.
1. Do you like hamburgers or hot dogs better?
2. Do you like mustard, mayonnaise,or ketchup best?
3. Do you like juice or lemonade withyour hamburger or hot dog?
Write two things you learned from your survey.
4.
5.
mustard
mayonnaise
ketchup
NameLESSON 6.4
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CW30 Challenge
Answers will vary.Sample answers are given.
More people like hamburgers than hot dogs.
More people like juice than lemonade.
hamburgers
hot dogs
juice
lemonade
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Challenge CW31
LESSON 6.5
Book DataChildren in Mrs. Webbs class who read 50 books join the50 Book Club.
Add. Write Yes or No to tell whether the child joins the club.
Color the graph to show how manybooks each child read.
Books Read
Name Before After Total Joined theJanuary January Club?
Bob 10 30 40 NoEllen 20 30 50 YesKen 20 40 60 YesJoan 10 40 50 YesAmy 20 10 30 No
Books Read
Bob
Ellen
Ken
Joan
Amy
0 10 20 30 40 50 60
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CW32 Challenge
Reading for Ribbons!This graph shows how many bookseach child read in March. The childwho read the most books won aribbon.
Each stands for 4 books.
1. How many books did Bill read? books
2. How many books did Jessie read? books
3. How many more books did Bill read than Maria? books
4. How many books did Maria and Candi read altogether? books
5. How many books did the winner read? books
6. How many fewer books did Jessie read than Candi? books
7. Who read fewer than 12 books? Maria82028
81216
Books Read
Maria
Candi
Bill
Jessie
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Challenge CW33
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1.
2.
3.
4.
5.
More or Less MoneyWork with a friend.Choose who will be A and who will be B.Who has the greater amount in each row? Circle it.If you both have the same amount, color the coins.
A B
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NameLESSON 7.2
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CW34 Challenge
1. Ann buys a muffin that costs 55. She uses 3 coins.Write how many of each coin.
2. Make 55 with 2 coins. Write how many of each coin.
3. Make 55 with 5 coins.Write how many of each coin.
221
11
12
The Same AmountAnn can use different numbers of coins to make the same amount of money. Can you?
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Challenge CW35
Money in the BankCircle the fewest coins that show the amount.
1. 2.
3. 4.
NameLESSON 7.3
14 26
18 52
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NameLESSON 7.4
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Money TreesFollow the path.Stop at each tree and circle the greater amount.
CW36 Challenge
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NameLESSON 7.5
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Challenge CW37
School Supply Store
Use the table.Choose coins to buy supplies.Draw the coins. Count up the total.
1. Paper and an eraser 2. A marker and an eraser
Total Total
3. Paper and a sharpener 4. Pencil and a sharpener
Total Total 5887
6068
School Supplies Price
Paper 50
Sharpener 37
Marker 42
Eraser 18
Pencil 21
25 5
1 1 110
255
11
1 1
1
10 10
101010
25 5
1 110
10
10
25 505
11 1
Answers will vary.
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CW38 Challenge
NameLESSON 8.1
50 AllCircle the coins you need.
Circle two coins that make 50.
Circle four coins that make 50.
Circle six coins that make 50.
Circle seven coins that make 50.
1.
2.
3.
4.
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Challenge CW39
Coin PuzzlesSolve. Draw the coins.
1. Ivan has 43.He has 9 coins.What coins does he have?
43
2. Brittany has 43.She has 6 coins.What coins does she have?
43
3. Jacob has 65.He has 5 coins.What coins does he have?
65
4. Whitney has 65.She has 3 coins.What coins does she have?
65
NameLESSON 8.2
10
10
10
25
25
50
25
10 5
5
5
5
5 5
55 5 1 1 1
1 1 1
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CW40 Challenge
NameLESSON 8.3
What Can I Buy?Solve. Write the amount.Circle what the person can buy.
1. Drew has 4 dimesand 3 nickels.How much moneydoes he have?
2. Maria has 2 quarters,1 dime, 2 nickels, and1 penny. How muchmoney does she have?
3. Sue has 3 quarters,1 dime, and 1 nickel.How much money doesshe have?
4. Jamila has 2 quarters,2 dimes, and 3 pennies.How much money does she have?
73
90
71
55
90
62 45
89
62
75
95
9289
6275
90
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Challenge CW41
Get Money BackUse punchout coins. Use the fewest coins to show the change. Trace the coins and write the value on each one. Then write the amount of change in all.
Price Pay Change
1.
60 75
change
2.
27 50
change
3.
31 50
change
4.
51 75
change24
19
23
15
NameLESSON 8.4
10
10
10 10
105
5
1 1 1
1
1
11
101
1
11
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CW42 Challenge
Ways to Make 25Maria has 25. What coins could there be?Make a list to find out.
Pennies Nickels Dimes Quarters
25 0 0 020 1 0 015 2 0 0
15 0 1 0
10 3 0 0
10 1 1 0
5 4 0 0
5 2 1 0
5 0 2 0
0 5 0 0
0 3 1 0
0 1 2 0
0 0 0 1
How many ways can you make 25? 13
NameLESSON 8.5
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Challenge CW43
NameLESSON 9.1
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Time TrailDraw a line to the clock that comes next.
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
218
910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
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CW44 Challenge
NameLESSON 9.2
Hour After HourDraw the hour hand and minute hand to show the time.
1. 20 minutes after 3
2. 10 minutes after 7
3. 25 minutes after 9
4. 5 minutes after 5
5. 45 minutes after 2
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
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Challenge CW45
NameLESSON 9.3
After and BeforeWrite the time.1. :
minutes after
minutes before
2. :
minutes after
minutes before
3. :
minutes after
minutes before
4. :
minutes after
minutes before
5. :
minutes after
minutes before
6. :
minutes after
minutes before 315
245
452
1225
1135
3511
115
1055
5510
1015
945
459
610
550
505
720640
406
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
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CW46 Challenge
Please Tell Me the Time!Draw the hour hand and the minute hand to show the time.
1.
1:15
4.
4:25
7.
6:30
10.
11.55
2.
9:30
5.
7:50
8.
10:35
11.
3:45
3.
12:20
6.
2:10
9.
8:05
12.
7:45
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
8910
11 12
7 6 543
21
NameLESSON 9.4
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Challenge CW47
Activities of the DayWrite the time you do each activity.
Then circle A.M. or P.M.
NameLESSON 10.1
Answers will vary.
1.wake up : A.M. P.M.
2.eat dinner : A.M. P.M.
3.brush teeth before school : A.M. P.M.
4.do homework : A.M. P.M.
5.have math class : A.M. P.M.
6.go to bed : A.M. P.M.
7.get dressed for school : A.M. P.M.
8.eat lunch : A.M. P.M.
9.read before bed : A.M. P.M.
10.eat breakfast : A.M. P.M.
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CW48 Challenge
Elapsed Time
Use a to help solve the problem.8
910
11 12
7 6 543
21
NameLESSON 10.2
1. It is now 8:30.The mall will close in30 minutes. What time will the mall close?
3. The play starts at 2:30.It will end in 2 hours.What time will the play end?
5. The game ended at 4:00.It had taken 1 hour. Whattime did the game begin?
7. The test starts at 1:00.It wil end in 30 minutes.What time will the test end?
2. The race begins at 10:00.It will end in 1 hour.What time will the race end?
4. It is now 3:45. We will beat Grandpas house in 30minutes. What time will webe at his house?
6. The baby woke up at 3:00.He had slept for 1 hour.What time did he go to sleep?
8. The zoo trip ended at 5:30.It had lasted 2 hours.What time did the zootrip start?
3:30
2:00
4:15
11:00
1:30
3:00
4:30
9:00
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Challenge CW49
NameLESSON 10.3
Circle the Dates
Circle the dates on the calendar.
1. one week after February 52. four days after March 263. two weeks before January 154. the last Thursday in November5. the fourth Tuesday in April6. two weeks before February 37. five days after the third Sunday in June8. eight days before October 20
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CW50 Challenge
NameLESSON 10.4
Write the TimeAbout how long will it take? Answers will vary.
1. eat breakfast about minutes
2. read a book about hours
3. wash the dog about minutes
4. have a birthday party about hours
5. take a bath about minutes
6. go away for the weekend about days
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Challenge CW51
Put in order from shortest to longest.
1. 50 weeks, 13 months, 1 year
, ,
2. 10 weeks, 2 months, 50 days
, ,
3. 1 month, 7 weeks, 32 days
, ,
4. 2 months, 6 weeks, 64 days
, , 64 days2 months6 weeks
7 weeks32 days1 month
10 weeks2 months50 days
13 months1 year50 weeks
NameLESSON 10.5
Order Time
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CW52 Challenge
NameLESSON 11.1
Facts and Addition of TensUse addition facts to help add tens.
Add.
23
+ 16
1.
4.
7.
10.
2.
5.
8.
11.
3.
6.
9.
12. 2040
+ 30
24
+ 3
4020
+ 10
42
+ 1
1010
+ 10
11
+ 1
1020
+ 10
12
+ 1
2020
+ 20
22
+ 2
1010
+ 70
11
+ 7
4020
+ 20
42
+ 2
3030
+ 30
33
+ 3
1030
+ 40
13
+ 4
5010
+ 20
51
+ 2
1060
+ 20
16
+ 2
2030
+ 10
60 90 4049
38 80909
798
968
30
9080 70
6080 90
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Challenge CW53
Hidden NumbersWhat was added to change the number?Write the number.
NameLESSON 11.2
1. 32 52
was added.
3. 11 17
was added.
5. 48 68
was added.
7. 33 83
was added.
9. 51 91
was added.
2. 50 52
was added.
4. 25 85
was added.
6. 34 37
was added.
8. 26 30
was added.
10. 51 59
was added.8
4
3
60
2
40
50
20
6
20
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CW54 Challenge
Addition EstimatesEstimate without finding the sum.Circle the better estimate.
1.
greater than 20 greater than 20 greater than 20
less than 20 less than 20 less than 20
2.
greater than 30 greater than 30 greater than 30
less than 30 less than 30 less than 30
3.
greater than 40 greater than 40 greater than 40
less than 40 less than 40 less than 40
4.
greater than 50 greater than 50 greater than 60
less than 50 less than 50 less than 60
59+ 8
44+ 5
45+ 6
36+ 7
32+ 6
37+ 5
28+ 8
27+ 9
26+ 3
17+ 5
14+ 4
16+ 6
NameLESSON 11.3
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Challenge CW55
Addition Story ProblemsUse . Add.Use the boxes for your work.
NameLESSON 11.4
Check childrens work.1. There are 17 boys at the skating
rink.16 girls join them. Now there
are children at the rink.33
2. There are 19 robins in the maple
tree. Then 18 wrens join them.
There are birds in all in the
maple tree.
37
3. I have 18 pennies.
I save 23 more.
Now I have pennies.41
4. Marcys mom baked 24 corn
muffins.Then she baked 12
bran muffins. She baked
muffins in all.36
5. Len counted 29 oak trees in the
park. Then he counted 19 elm
trees. He counted
trees in all.
48
17+ 16
33
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CW56 Challenge
Zoo StoryWrite the correct answer. Use if you need to.
NameLESSON 11.5
1. There are 18 monkeys in thezoo. There are 15 snakes inthe zoo. How many monkeysand snakes are there at thezoo?
monkeys and snakes
3. Mark took photos of13 animals. Neil took photos of18 animals. How many photosof animals did the two boystake?
photos
5. Jill bought 13 tiger erasers atthe gift shop. Joan bought16 monkey erasers. Howmany erasers did they buy?
erasers
7. The snack shop sold 28 bagsof peanuts. It sold 31 bags ofpopcorn. How many bags of popcorn and peanuts did theshop sell?
bags
2. Bills class read 12 booksabout the zoo. Jons classread 11. How many booksabout the zoo did the twoclasses read?
books
4. Maria fed the elephant19 peanuts. Tim fed it16 peanuts. How manypeanuts did they feed theelephant?
peanuts
6. The petting zoo had 12 goatsand 14 sheep. How manygoats and sheep were there atthe petting zoo?
goats and sheep
8. Nico bought 14 bear stickersat the zoo. Hans bought18 bird stickers. How manystickers did they buy in all?
stickers32
26
35
23
59
29
31
33
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Challenge CW57
NameLESSON 12.1
Circus AlgebraUse Workmat 3 and . Write the missing addend.
30
34
429
32
385
94
976
82
6
25
32
753
61
813
20
746
54
8
74
77
392
99
745
51
663
71
8
43
50
764
69
565
74
957
647
1.
2.
3.
4.
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CW58 Challenge
NameLESSON 12.2
Colorful AdditionUse Workmat 3 and . Color the answer.
Joey had 75 cards.He bought 11 more.Then Pat gave him 5 cards. How many cards does he have in all?Color the answer blue.
Felicia had 14 books.Latoya gave her 25 more.Then her mom gave her 3 books. How many books does she have in all?Color the answer yellow.
Kenny had 27 marbles.Joey gave him 30 more.Then Dan gave him 5 marbles. How many marbles does he have in all?Color the answer purple.
Ellen had 64 pencils.Tracy gave her 13 more.Then Ellen found 4 pencils. How many pencils does she have in all?Color the answer green.
Nilda had 46 stickers.Renaldo gave her 15 more.Then she got 3 stickers from Max. How many stickers does she have in all?Color the answer red.
1.
2.
3.
4.
5.
42
62
91blue
64red
81green
purple
yellow
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Challenge CW59
NameLESSON 12.3
tens ones
2
4
16
1
5
1 1
tens ones
2
3
06
1
5
What Is Missing?Use Workmat 3 and . Write the missing number.
tens ones
3
5
25
9
4
tens ones
4
7
24
2
8
1
tens ones
4
9
44
2
8
1
tens ones
6
6
12
7
5
1
tens ones
5
9
36
5
9
1
tens ones
4
8
34
2
8
1
tens ones
3
4
17
5
8
1
1. 2. 3.
4. 5. 6.
7. 8. 9.
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CW60 Challenge
NameLESSON 12.4
Matching EstimatesMatch each story to the best estimate.
Mark had 48 pennies on Monday.He earned 24 pennies on Tuesday.He earned 21 pennies on Wednesday.About how many pennies does he have in all?
Mary wants to buy 3 toys.A car costs 19 pennies. A ball costs 19 pennies. A marble costs 8 pennies.About how many pennies does she need in all?
Ann wants to buy 3 marbles. Each marble costs 9 pennies. About how many pennies does she need?
Julio takes 3 spoonfuls of raisins. The first spoonful has 22 raisins. The second has 21 raisins. The third has 38 raisins. About how many raisins does he have in all?
1.
2.
3.
4.
30
90
80
50
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Balloon AdditionAngela and her friends blew up balloons for the school fair. Solve the problems. Then complete the table.
Write how many balloons each person blew up. Circle the one who blew up the most balloons.
NameLESSON 13.1
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Challenge CW61
1. Angela blew up 17 balloons.Courtney blew up 18 more. Howmany balloons did they blow upin all?
balloons
3. Courtney blew up 25 balloons.She blew up 20 more. Howmany balloons did she blow up in all?
balloons
2. Before lunch Jacob blew up14 balloons. After lunch heblew up 27 more. How manyballoons did he blow up in all?
balloons
4. Angela blew up 45 more balloons. Jacob blew up17 more. How many moreballoons did they blow up in all?
balloons62
41
45
35
Angela Courtney Jacob
17 18 41
45 45 17
Total 62 63 58
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CW62 Challenge
NameLESSON 13.2
Mental MatchingMatch each math story to the mental math sum.
1. Lane has 69 pennies.Kara has 16 pennies.How many pennies are there in all?
2. Matt has 54 pennies.Anna has 31 pennies.How many pennies are there in all?
3. Chris has 59 pennies.Kevin has 36 pennies.How many pennies are there in all?
4. Liz has 74 pennies.Shannon has 21 pennies.How many pennies are there in all?
5. Rachel has 37 pennies.Rory has 38 pennies.How many pennies are there in all?
6. Michael has 31 pennies.Rita has 44 pennies.How many pennies are there in all?
80 + 5 = 85
90 + 5 = 95
70 + 15 = 85
60 + 15 = 75
70 + 5 = 75
80 + 15 = 95
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Challenge CW63
Addition RainbowWrite the sum.Then use the chart to color the rainbow.
NameLESSON 13.3
3039 =
6069 =
4049 =
7079 =
9099 =
5059 =
8089 =
37+ 57
94
26+ 55
81
39+ 29
68
21+ 19
40
51+ 21
72
14+ 17
31
28+ 29
57
43+ 5295
red
purpleyellowblue
green
white
orange
R
O
Y G B P
W
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CW64 Challenge
NameLESSON 13.4
Graphing Around the WorldAll second grade students are doing reports on other countries.
1. Complete the graph to show how many students wrote about each country.
Each stands for 5 students.
Use the graph to answer the questions.
2. How many students in all wrote reports on China or Trinidad?
3. How many students did not write about Syria?
4. How many second graders are there?
5. How many more students wrote about Trinidad than Ireland?
25
9570
50
Reports Done
China 20
Ireland 5
Mexico 15
Syria 25
Trinidad 30
Reports Done
China
Ireland
Mexico
Syria
Trinidad
0 5 10 15 20 25 30 35
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Challenge CW65
NameLESSON 14.1
Missing TensWrite the missing number.
1.
4.
7.
10.
2.
5.
8.
11.
3.
6.
9.
12.
80
60
2050
40
10
80
10
70
60
30
90
40
0
40 80
0
80
20
10
10 60
10
70
30
20
50
90
20
70
80
40
40
10
80
90
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CW66 Challenge
NameLESSON 14.2
Tens or Ones?Write how much you count back.
1. 28 18
Count back .
3. 96 94
Count back .
5. 96 76
Count back .
7. 61 31
Count back .
9. 42 40
Count back .
11. 81 80
Count back .
2. 35 32
Count back .
4. 85 55
Count back .
6. 72 62
Count back .
8. 61 58
Count back .
10. 53 33
Count back .
12. 17 7
Count back .10
20
3
10
30
3
1
2
30
20
2
10
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Challenge CW67
NameLESSON 14.3
1. 46 tens ones
2. 57 tens ones
3. 75 tens ones
4. 24 tens ones
5. 38 tens ones
6. 41 tens ones
7. 53 tens ones
8. 92 tens ones
9. 84 tens ones
10. 61 tens ones
11. 73 tens ones
12. 52 tens ones
13. 43 tens ones
14. 66 tens ones165
133
124
136
115
147
128
134
113
182
141
156
174
163
Names for NumbersWrite how many tens and ones there are after you regroup 1 ten as 10 ones.
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CW68 Challenge
NameLESSON 14.4
Subtract 13.
92 7938 2569 56
Subtract 27.
59 3263 3681 54
Subtract 39.
79 4059 2091 52
Subtract 22.
98 7678 5671 49
Subtract 48.
50 248 088 40
Subtract 12.
37 2523 1165 53
1. 2.
4.3.
6.5.
Subtraction ZooFollow the rule to complete the table.
-
48 19
29
44 27
17
26 22
4
25 16
9
43 28
15
44 25
19
51 33
18
27 16
11
19 12
7
48 22
26
28 14
14
35 22
13
A
G
O
C
I
S
D
L
T
E
N
!
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Challenge CW69
NameLESSON 14.5
Dragon SubtractionSubtract. Find the answer to the riddle.
What is the best way to call a dragon?
!29
E7
C14
N15
A13
T17
S4
I18
D26
G11
N15
O9
L19
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CW70 Challenge
NameLESSON 15.1
Cross OverSubtract. Color the circles in which you regrouped.
1.
2.
3.
4.
5. Draw 2 lines to connect the colored circles.Circle the pattern that you see.
Z X A
52 38
14
63 51
12
55 42
13
61 24
37
25 14
11
36 9
27
47 8
39
14 11
3
85 42
43
51 16
35
63 17
46
92 81
11
76 29
47
44 34
10
25 12
13
40 28
12
3 10
5 13 4 11
3 17 2 16
6 16
5 11 4 12
color color
color
color color
color color
color
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Challenge CW71
Riddle TimeSubtract.Match each answer with a letter in the table to solve the riddle.
B E H L73 15 43 37O S U T0 48 10 29
1. 2. 3. 4.
96 23 73 36 34 24 62 47
5. 6. 7. 8.
64 16 81 38 43 43 30 15
What do you call a sad sneaker? Answer: shoeblue
EOHS
EULB
NameLESSON 15.2
96 23
73
73 36
37
64 16
48
81 38
43
43 43
0
30 15
15
34 24
10
62 47
15
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CW72 Challenge
Which Way?Which way should Critter go to get to the tree? He must take the path with answers greater than 40. Subtract. Then draw a line to show the correct path!
NameLESSON 15.3
93 69
24
8 1393
3756
8 13
91 33
58
8 11
43 26
17
3 13
78 59
19
6 1881
738
7 11
43 27
16
3 13 59 14
45
66 25
41
76 21
55
62 20
42
87 56
31
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Challenge CW73
About How Many Stickers?Members of the Sticker Club gave away some of their stickers.
Each subtraction problem shows how many stickers a member had and how many stickers the member gave away.Estimate. Match the subtraction problems to the club members.
Mei has about 70 stickers left.
Ben has about 60 stickers left.
Sari has about 50 stickers left.
Kara has about 40 stickers left.
Jos has about 30 stickers left.
Lee has about 20 stickers left.
Jake has about 10 stickers left.
Keith has about 0 stickers left.
NameLESSON 15.4
80 27
71 4883 49
81 3967 59
92 2984 78
83 11
-
House of NumbersAdd or subtract. Use your answers to complete the puzzle.
Across
1. 3. 6. 7. 8.
Down
2. 4. 5. 6. 7. 81 28
53
66 15
51
40 16
24
36 19
17
54 25
29
42+ 21
63
19+ 33
52
29+ 29
58
58+ 33
91
34+ 28
62
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CW74 Challenge
NameLESSON 15.5
4
1 1 11
14 2 16 3 10 7 11
6 2 2
7
19 4
25
36
85
1
1 2
3 4
5
76
8
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Challenge CW75
1. 71 57 = 2. 50 9 =
57 is close to . 9 is close to .
Add to 71 and 57. Add to 50 and 9.
So, = . So, = .
3. 76 54 = 4. 85 66 =
76 is close to . 66 is close to .
Add to 76 and 54. Add to 85 and 66.
So, = . So, = .
5. 92 58 = 6. 68 59 =
58 is close to . 68 is close to .
Add to 92 and 58. Add to 68 and 59.
So, = . So, = .96170346094
22
7060
934
197089225880
44
7080
1922
41105114607413
1060
4114
NameLESSON 16.1
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Short CutsUse mental math to think through each problem.Fill in the blanks. Solve.
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CW76 Challenge
NameLESSON 16.2
What Is It?Subtract.Color to find the hidden picture.
If you regroup, color the shape .
If you do not regroup, color the shape .
47 10
37
63 50
13
90 80
10
72 23
49
99 90
9
91 64
27
80 13
67
61 12
4985
20 65
90 24
66
75 59
1682
60 22
34 30
4
71 40
31
orange
blue
B
B
B
B B
B
BB
O
O O
O
O
O
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Challenge CW77
NameLESSON 16.3
At the Market
Add to find out how much you pay.
1. 2.
3. 4.
Subtract to find the amount you have left.
5. You have 90. 6. You have 25.
7. You have 74. 8. You have 61.
61 22
39
74 69
5
25 619
90- 30
60
14+ 822
10+ 25
35
11+ 78
89
20+ 22
42
814
22
20
11
7822
306
78251020
11
69
30 6
10
25
69
22
14
8
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CW78 Challenge
NameLESSON 16.4
Shopping Trip
Use the picture. Solve.
1. Sammy has 85. If he buys crayonsand a kite, how much money will he have left?
2. Karla has 90. If she buys an apple and boots, how much money will she have left?
3. Robin has 99. She spends 88 for a clown and crayons. How much more does she need to buy a kite?
4. Ben has 95. He spends 57 for a kite and an apple. How much more does he need to buy boots?
75 38
37
95 57
38 37
47 11
36
99 88
11 36
90 85
5
10+ 75
85 5
85 79
6
32+ 47
796
7547
56
32
10
157
8 10
815 615
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Challenge CW79
Picture Shapes
Draw a picture using squares, triangles, circles, rectangles, and ovals. Answers will vary.
Name LESSON 17.1
Write how many you drew.
1. squares _______ 2. triangles _____ 3. circles _____
4. rectangles _____ 5. ovals _____
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CW80 Challenge
Match the SidesLook at the figures in each row.Find two figures whose dashed sides are the same length. Circle those figures.
1.
2.
3.
4.
5.
NameLESSON 17.2
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Challenge CW81
More SymmetryDraw a line of symmetry when you can.Some letters have no lines of symmetry.
1.
2.
3.
4.
5.
NameLESSON 17.3
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CW82 Challenge
Triangle ChallengeWork with a partner. Each use a different color. Drawlines to make triangles in the square.
Use tally marks to record the triangles you made.
NameLESSON 17.4
Answers will vary.
My s.
Your s.
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Challenge CW83
NameLESSON 17.5
Make Them FitCut out the shapes to fit the puzzle. You may flip and turn the shapes.
Use one shape at a time. Write howmany of each shape it takes to fill therectangle.
4 6 2
-
Move It!Draw what the piece looks like after each move. Use .
1.
Start Turn Flip Slide2.
Start Flip Flip Flip3.
Start Slide Turn Slide4.
Start Flip Turn Turn
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CW84 Challenge
NameLESSON 17.6
Answers will vary. Possible drawings are given.
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Challenge CW85
Will It Stack?Cross out the stacks that could not be made.
1. 2.
3. 4.
5. 6.
NameLESSON 18.1
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CW86 Challenge
Shape TraceDraw a plane shape you could trace.
1. 2.
3. 4.
5. 6.
NameLESSON 18.2
Check childrens work.Some answers may vary.
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Challenge CW87
RiddleWhat happens if you drop a yellow rock into the Red River?
Write the numbers. Use the table to change each number to a letter.
0 1 2 3 4 5 6 7 8
T G W R N S H A E
It
.TEW
082
STEG
5081
NameLESSON 18.3
cone? yes 1 no 2
edges on faces on corners on
sphere? yes 1 no 2
corners on corners on
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CW88 Challenge
Build Your OwnTake a number of that is less than 18.Make a model with the .Have a friend estimate and count the .Take turns. Check childrens work.
1. Estimate. ____ cubes 2. Estimate. ____ cubes
Count. ____ cubes Count. ____ cubes
Draw it. Draw it.
3. Estimate. ____ cubes 4. Estimate. ____ cubes
Count. ____ cubes Count. ____ cubes
Draw it. Draw it.
NameLESSON 18.4
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Challenge CW89
NameLESSON 19.1
From the TopAbout how much taller is the gray pencil than thewhite pencil?
1. 2. 3.
about 2clips taller
about 3clips taller
about 2clips taller
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CW90 Challenge
NameLESSON 19.2
Long Lines, Short LinesEstimate the length of each line.Then measure its length in inches to check.
Estimate: inches
Check: inches4
Estimate: inches
Check: inches8
Estimate: inches
Check: inches5
Estimate: inches
Check: inches4Estimate: inches
Check: inches6
Estimate: inches
Check: inches2
The longest line is . The shortest line is .
Lines and are about the same length.FE
AD
A
C
D
E
B
F
A.
C.
D.
F.
B.
E.
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Challenge CW91
NameLESSON 19.3
Feet and Inches Together12 inches make one foot. We can write 13 inches as one foot and one inch.Match the number of inches with the same length in feet and inches.
13 inches
15 inches
16 inches
20 inches
24 inches
25 inches
32 inches
2 feet 1 inch
1foot 4 inches
1foot 1 inch
2 feet 0 inches
2 feet 8 inches
1 foot 3 inches
1 foot 8 inches
1 foot
1 foot
1.
2.
3.
4.
5.
6.
7.
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CW92 Challenge
NameLESSON 19.4
Know the Ropes!These ropes are the wrong length.Use a centimeter ruler to measure the ropes. Cross out parts that aretoo long. Make the rope longer if it is too short. Tell how many centimeters you added or cut off.
1.
2.
3.
4.
5.
6.
7.
8.
10 centimeters centimeters
8 centimeters centimeters
5 centimeters centimeters
14 centimeters centimeters
9 centimeters centimeters
5 centimeters centimeters
3 centimeters centimeters
12 centimeters centimeters added5
cut off4
cut off2
added6
added4
added2
cut off3
added3
-
The perimeter is
centimeters.
The perimeter is
centimeters.
The perimeter is
centimeters.
The perimeter is
centimeters.
The perimeter is
centimeters.
The perimeter is
centimeters.
The perimeter is
centimeters.
The perimeter is
centimeters.14
16
12
16
16
16
11
12
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Challenge CW93
NameLESSON 19.5
Comparing PerimetersUse a centimeter ruler.Find the perimeter of each shape.Then color the one with greater perimeter.
1.
2.
3.
4.
colored
colored
Color bothor neither.
-
Estimate: about inches
Check: about inches
Estimate: about inches
Check: about inches
Estimate: about inches
Check: about inches
Estimate: about inches
Check: about inches
Estimate: about inches
Check: about inches
Estimate: about inches
Check: about inches8
7
6
6
8
8
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CW94 Challenge
NameLESSON 19.6
Give an InchEstimate the perimeter of each shape. Check your answer by measuring.
1 inch
1.
3.
5.
1 inch1 inch
2.
4.
6.
1 inch
1 inch
1 inch
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Challenge CW95
NameLESSON 20.1
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Liquid MeasureSolve.
1. Terry has 4 cups of milk. 2. Jeremy has 2 quarts of milk.Glen has 1 pint of milk. He drinks 3 pints of it.Who has more milk? How much does he have left?
Terry3. Dale bought 3 pints of 4. Cesar has 6 cups of milk.
milk. Emily bought 4 cups of How many pints can he fill?milk. Who has more milk?
5. Haley has 1 quart of milk. 6. Dustin bought 4 pints of milk. How many cups can she fill? Hannah bought 3 quarts of
milk. Who has more milk?
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________ 2 cups, or 1 pint
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________ 3 pintsDale
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ ____________________
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________ Hannah4 cups
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ ____________________
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CW96 Challenge
NameLESSON 20.2
The Water MachineLisa wants to buy water for these containers.Draw a line from the container to about the number of liters of water she should buy.
1.
2.
3.
4.
5.
1 liter
2 liters
8 liters
90 liters
20 liters
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Challenge CW97
NameLESSON 20.3
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Balancing ActDraw the shapes needed to make each seesaw balance.
1.
2.
3.
4.
16 ounces = 1 pound
2 ounces 3 ounces 5 ounces 1 pound
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CW98 Challenge
NameLESSON 20.4
Puzzle TimeFind the word to go in the blank.Write the word in the puzzle.
Across
1. A gram is about the mass of a paper .
2. A mouse would be measured in .
3. A weighs about 1 kilogram.
Down
1. An elephant would be measured in .
2. You can measure weight with a .
3. A kilogram is than a gram.more
scale
kilograms
hammer
grams
clip
K
I PLC
L
O
R
A
M
S
G R A M S
C
A M E RM
O
R
E
H
L
E
1
1
2 2
33
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Challenge CW99
NameLESSON 20.5
The Weather OutsideColor each thermometer to show the temperature.Then draw a picture to show something you like to do when it is 80F.
10
10
20
30
40
50
60
70
80
90
100
0
Fahrenheit
F
10
10
20
30
40
50
60
70
80
90
100
0
Fahrenheit
F
10
10
20
30
40
50
60
70
80
90
100
0
Fahrenheit
F
59F 32F 86F
Possible drawings may show swimming, playing baseball, sitting
in a hammock, reading a book, etc.
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CW100 Challenge
What Can You Measure?Work with a friend.Write and draw some things you can measure with each tool.
NameLESSON 20.6
cup ruler balance scale
Possible answers mayinclude: water, milk,
juice
Possible answers mayinclude: desk, book,
table
Possible answers mayinclude: fruit,
vegetables, book
1. 2. 3.
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Challenge CW101
Hundreds MatchWrite the number. Then write < or >.
1.
2.
3.
4.
5.
200300
600500
400200
500100
200400
NameLESSON 21.1
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Challenge CW101
>
615524, white
35
410shaded > white
610
712shaded < white
512
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CW120 Challenge
NameLESSON 24.5
Problem Solving Compare Fractions of FoodDraw a picture to solve the problem.Circle the answer.
1. Sonya made a pizza with 6
equal slices. She put pepperoni
on of the pizza. She put
hamburger on of the pizza.
She put olives on of the
pizza. Which covered the most
slices of her pizzapepperoni,
hamburger, or olives?
2. Henry had 4 muffins. He had
bran muffins. He had corn
muffins. He had blueberry
muffins. Which kind of muffin
did Henry have the most of?
14
24
14
16
36
26
pepperoni
hamburger
olives
bran muffins
corn muffins
blueberry muffins
Check childrens drawings.
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Challenge CW121
NameLESSON 25.1
200 100
300
398 412
29
707
661
406
16
7240111
10
764
500
998
988
728
650
green
green
green
green
red
1.
red
2.
red
3.
green
4.
green
5.
green
6.
green
498 500
998
207 500
707
261 400
661
106 300
406
312 100
412
198 200
398
Hundreds and MoreWhat is hidden in the picture? Add.Then color the spaces or .Color the leftover spaces .
red
yellow
green
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CW122 Challenge
NameLESSON 25.2
1.
sunflowers
daisies
3.
lilies
roses
5.
daisies
roses
2.
tulips
lilies
4.
sunflowers
tulips
6.
lilies
sunflowers
How Many Flowers?Use the table. Write the addition problem.
Flowers Planted
tulips 241
roses 105
daisies 426
sunflowers 190
lilies 369
+
190
426
616
+
241
369
610
+
369
105
474
+
190
241
431
+
426
105
531
+
369
190
559
1 11
1 1
1 1
-
Add 123.
341 464564 687
827 950
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Challenge CW123
NameLESSON 25.3
3-Digit AdditionAdd.Complete each chart.
Add 256.134 390
523 779
712 968
Add 219.672 891
561 780
450 669
Add 361.136 497
247 608
621 982
1.
2.
3.
4.
Work Space
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CW124 Challenge
NameLESSON 25.4
Help the Frog Find the PondAdd.Find the spaces in the picture with those sums.Color the spaces to get the frog to the pond.
477 246
723
632 291
923
585 116
701
847 67
914
521 129
650
298 114
412
366 366
732
181 179
360
677 243
920
312 409
721
1.
3.
5.
7.
9.
2.
4.
6.
8.
10.
412
923
732
701
360
914
920650
721300
727
400
200
800169
860
109
320
350
361
171
499
147
723
590
378
911
Start
Finish
11
11
11
11
11
1
11
1 1
brown
brown
brown
brown
brown
brown
brownbrown
brown
brown
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Challenge CW125
NameLESSON 25.5
Add Dollars and Cents
1. How much does it cost to buythe paint set and the paper?
3. Martha buys the brushes andthe paper. How much does shespend?
5. Joe buys the markers and Nedbuys the paste. How much dothey spend?
2. You buy the brushes and theruler. How much do you spend?
4. How much does it cost to buythe scissors and the crayons?
6. How much do the crayons andthe paint set cost together?
6.112.999.10
5.55
2.99
8.54
3.68
2.49
6.17
6.91
1.69
8.60
5.55
3.55
9.10
1.69
6.11
7.80
$
+
$
$
+
$
$
+
$
$
+
$
$
+
$
$
+
$
Add.
1 11 1
1 11 1
1 1 1
-
An Adding PatternAdd.If the sum begins with 7, color the box .If the sum begins with 5, color the box .Look for a pattern.
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CW126 Challenge
NameLESSON 25.6
2. 310 + 394
yellow
310 394
704
1. 477 + 118
red
477+ 118
595
3. $1.76 + $3.76
red
$ 1.76 3.76$ 5.52
5. 199 + 399
red
199 399
598
6. $5.12 + $2.08
yellow
$ 5.12 2.08$ 7.20
4. 210 + 496
yellow
210 496
706
8. $5.25 + $1.98
yellow
$ 5.25 1.98$ 7.23
9. 425 +125
red
425 125
550
7. 110 + 390
red
110 390
500
11. 246 + 324
red
246 324
570
12. 601 + 109
yellow
601 109
710
10. 333 + 392
yellow
333 392
725
1
1 1
111 1
1 1
111
1 1
yellow
red
-
Y.
B. 625200
425
444 200
244
811 600
211
418 300
118
511 200
311
462 100
362
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Challenge CW127
NameLESSON 26.1
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Subtraction SecretSubtract.Use the code to find the answer to the riddle.
What is a ghosts favorite pie?
R. P. E.
O. I.
!!211 244 244 211 118 362 362 206 311 425 118
eipyrreboob
406 200
206
-
2. 1 16
426119
307
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CW128 Challenge
NameLESSON 26.2
1. 6 13
273116
157
3. 3 17
547228
319
Y O U
4. 6 11
871223
648
5. 4 13
653419
234
6. 5 11
361138
223
A R E
7. 7 13
883349
534
8. 5 13
863618
245
9. 6 15
975327
648
10. 6 10
670436
234
11. 1 14
524509
15
S M A R T
A648 M245 O307E223 S 534 U319T 15 R 234 Y157
3-Digit CodeSubtract. Then find the difference at the bottom.Write its letter in the box. Read the secret message.
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Challenge CW129
NameLESSON 26.3
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Raining HundredsSubtract.How many hundreds are in the difference?Find the color for that many hundreds.Use it to color that part of the picture.Look for a pattern.
0 hundreds 5 hundreds 4 hundreds1 hundred 3 hundreds 2 hundreds
7 hundreds
red red
blue blue
yellow
blue
red
5 17
167139
28
5 10
607262
345
1 12
922407
515
5 10
360121
239
81514
964175
789
6 12
729231
498
3 11
241106
135red blue
yellow
blue bluered red
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CW130 Challenge
NameLESSON 26.4
3-Digit MessageSubtract.Use the code to find the message.
375 to 400: A 451 to 475: I 526 to 550: M 601 to 625: T401 to 425: D 476 to 500: K 551 to 575: O 626 to 650: U426 to 450: E 501 to 525: L 576 to 600: R 651 to 675: Y
8 15 16
966299
667
6 10 11
711136
575
OY
5 11 11
621152
469
I
7 10 12
812388
424
D
8 9 10
900438
462
I
8 9 12
902287
615
T
8 11 10
920274
646
U
6 9 12
702289
413
D
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Challenge CW131
NameLESSON 26.5
Whats Missing?Read each problem. Think of the steps necessary to find the answer.What is missing? Write what you need to know to solve each problem.
1. There are 267 brown horses in the stable. There are white horses, too. How many horses are there in all?
I need to know
2. Joe harvested 344 ears of corn on Friday. He also harvested corn on Saturday. How manyears of corn did Joe harvest on both days?
I need to know
3. Joe loaded 522 bales of hay onto the truck onFriday. He also loaded hay on Saturday. How many more bales of hay did Joe load on Fridaythan on Saturday?
I need to know
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________
__________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __________________________________________
the number of white horses.
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________
__________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __________________________________________
how many ears of corn Joe
harvested on Saturday.
_____________________ _ _ _ _ _ _ _ _ _ _ _ _ _____________________
__________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __________________________________________
how many bales of hay Joe
loaded on Saturday.
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CW132 Challenge
NameLESSON 27.1
Lets Go Shopping!Add or subtract.Circle the object or objects that each person buys.There may be more than one possible answer.
1. What did Tom buy? He started with $3.85. He now has $1.35.
$3.00 $2.50 $1.50
2. What did Kelly buy? She started with $5.50. She now has $4.25.
$1.35 $1.15 $1.253. What did Cory buy? He started with $7.80.
He now has $2.90.
$2.40 $2.50 $2.604. What did Natashia buy? She started with $8.22.
She now has $5.75.
$0.57 $1.67 $1.90 $0.80
Note that crayons and clay also equal $2.47.
Answers will vary.Possible answers are given.
$3.85 1.35$2.50
$5.504.25$1.25
$2.40+2.50$4.90
$7.802.90$4.90
$8.225.75$2.47
$1.67+0.80$2.47
4 10
6 18
7 1112 1
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Challenge CW133
NameLESSON 27.2
Estimating Costs
1. What two things can you buyfor less than $5.00?
jacks
ball
3. How much more does a teddybear cost than a rubber duck?
Estimate Check
$ $
2. How many stuffed elephantscan you buy for $10.00?
elephants
How much change will youget?
$
4. How much does it cost to buythe duck and the balloons?
Estimate Check
$ $ 8.248.00
1.00
2
2.513.00
Estimate. Then add or subtract.
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CW134 Challenge
NameLESSON 27.3
Adding and Subtracting FishAdd or subtract.Then connect the fish from least to greatest amount.
300187113
700 358
342
632+ 198
830
900 370
530
700 115
585
600 144
456
229+ 386
615
444+ 277
721
438+ 310
748
500 299
201
729+ 171
900
1.
2.
3.
5.6.
7.8.
9.
10.
11.
4.
-
Begin1with 200.
Begin 1with 100.
Begin 1with 300.
Add 100.
Add 125.
Subtract 200.
Add 425.
Add 300.
Add 212.
Subtract 435.
Add 400.
Add 200.
Add 155.
Subtract 500.
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Challenge CW135
Problem Solving One Step at a TimeWin points when you go up. Lose points when you go down.Move one step at a time.Show your work below the steps.
Path A
Path B
Path C
On which path do you get the most points? Path A
NameLESSON 27.4
200+100
300
300+125
425425
200225
225+ 425
650
100+ 300
400
400+ 212
612
612 435
177
177+ 400
577
300+ 200
500
500+ 155
655655
500155
Total
650
Total
577
Total
155
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CW136 Challenge
NameLESSON 28.1
Team PlayersDraw a picture. Solve.
1. A basketball team uses 5 players at a time. How many players can play on 6 basketball teams?
, , , , ,players
2. A hockey team uses 6 players at a time. How many players can play on 6 hockey teams?
, , , , ,players
3. A baseball team uses 9 players at a time. How many players can play on 2 baseball teams?
, , players
4. A football team uses 11 players at a time. How many players can play on 4 football teams?
, , , players4444332211
18189
3636302418126
3030252015105
X XX
X X
X X XX X XX X X
X X X XX X X
X X X X
X X X XX X X
X X X X
X X X XX X X
X X X X
X X X XX X X
X X X X
X X XX X XX X X
X XX
X X
X XX
X X
X XX
X X
X XX
X X
X XX
X X
X X XX X X
X X XX X X
X X XX X X
X X XX X X
X X XX X X
X X XX X X
Check childrens drawings.
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Challenge CW137
NameLESSON 28.2
Two WaysWrite the sum.Then write the product.
1. 5 + 5 + 5 + 5 + 5 + 5 = 6 5 =
2. 10 + 10 + 10 + 10 = =
3. 3 + 3 + 3 + 3 + 3 = =
4. 4 + 4 + 4 + 4 = =
5. 6 + 6 + 6 = = 186318
164416
153515
4010440
3030
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CW138 Challenge
NameLESSON 28.3
Making ArraysDraw circles. Draw 3 different arrays for each number.Write how many rows and how many in each row. Write the multiplication sentence.
1. 12
rows rows rows
in each row in each row in each row
2. 20
rows rows rows
in each row in each row in each row
2 6 = 1262
Answers may vary.Possible answers:
4 rows of 3, 3 rows of 4, 6 rows of 2,2 rows of 6,12 rows of 1,1 row of 12
Possible answers: 20 rows of 110 rows of 25 rows of 44 rows of 52 rows of 10 1 row of 20
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Related Multiplication FactsClimb the steps.
Write the product. Use the related multiplication fact in the toy box to help you.
7 8 =
9 6 =
6 8 =
5 9 =
7 6 =
4 9 =
8 4 = 32
36
42
45
48
54
56
NameLESSON 28.4
6 9 = 54
9 5 = 45
9 4 = 36
8 6 = 48
6 7 = 42
4 8 = 32
8 7 = 56
Challenge CW139
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CW140 Challenge
Find the X-itIf the multiplication is true, color the box red .
If the multiplication is false, color the box blue .
NameLESSON 28.5
3 5
15
6 4
26
9 3
18
5 6
30
3 9
28
5 8
32
5 3
12
8 5
40
4 7
14
6 5
40
4 9
32
7 3
21
8 2
10
9 4
34
5 5
25
6 6
30
10 7
70
2 8
4
5 5
35
6 6
42
35 = 16 49 = 36
64 = 24 46 = 28
39 = 27
55 = 20
74 = 24 47 = 28 107 = 35 710 = 75
65 = 35 82 = 16
58 = 30 66 = 36
37 = 20 73 = 24
R B B B B R
B R B B R B
B B R R B B
B B R R B B
B R B B R B
R B B B B R
The red squares form an X.
red
blue
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Challenge CW141
NameLESSON 29.1
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Draw to MultiplyUse counters to show equal groups. Draw them.Then solve the problem.
1. Draw 10 counters. How many equal groups of 2 are there?
2 = 10
2. Draw 16 counters. How many equal groups of 2 are there?
2 = 16
3. Draw 20 counters. How many equal groups of 2 are there?
2 = 20
4. Draw 14 counters. How many equal groups of 2 are there?
2 = 147
10
8
5
Check childrens drawings.
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CW142 Challenge
NameLESSON 29.2
Groups of 5Draw to help you solve the problem.Complete the multiplication sentence.
1. Jon has 5 equal baskets of apples. He has 40 apples in all. How many apples are in each basket?
5 = 40 in each basket
2. Sally has 5 equal bunches of bananas. She has 25 bananas in all. How many bananas are in each bunch?
5 = 25 in each bunch
3. Sean has 5 equal cartons of strawberries. He has 50 strawberries in all. How many strawberries are in each carton?
5 = 50 in each carton
4. Brenda has 5 equal bags of oranges. She has 35 oranges in all. How many oranges are in each bag?
5 = 35 in each bag77
1010
55
88
Check childrens drawings.
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Challenge CW143
NameLESSON 29.3
Multiply with 10Fill in the blank.
1. 2.
10 = 80 10 = 60
3. 4.
7 = 70 10 = 100
5. 6.
4 = 40 10 = 30
7. 8.
10 = 20 10 = 50
9. 10.
9 = 90 10 = 10
11. 12.
10 = 70 10 = 9097
110
52
310
1010
68
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CW144 Challenge
NameLESSON 29.4
Number RollUse a number cube.The first roll will show how many groups.The second roll will show how many are in each group.Write the multiplication sentence.Draw a picture to solve the problem.
1.
=
2.
=
3.
=
4.
=
5.
=
623
Check childrens drawings.
Problems will vary.Answers will vary.A sample answer is given.
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Challenge CW145
Draw Equal SharesDraw circles to make equal groups.
1. Divide 11 circles into equal groups.
____ circles in each group
____ left over
2. Divide 12 circles into equal groups.
____ circles in each group
____ left over
3. Divide 17 circles into equal groups.
____ circles in each group
____ left over
NameLESSON 30.1
Answers will vary.Check childrens drawings.
-
Find Equal GroupsRead each problem. How many ways can you make two or moreequal groups without leftovers?
1. 15 apples
groups of
groups of
2. 16 bananas
groups of
groups of
groups of
3. 18 pears
groups of
groups of
groups of
groups of
4. 20 oranges
groups of
groups of
groups of
groups of 45
54
210
102
36
63
29
92
44
28
82
3553
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CW146 Challenge
NameLESSON 30.2
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Challenge CW147
Divide to SolveSolve. Draw pictures if you need to.
1. There are 24 desks in Miss Kellersroom. There are 6 desks in each row.How many rows are there?
rows
2. 3 students borrowed 18 books fromthe library. Each student borrowed thesame number of books. How manybooks did each student borrow?
books
3. The teacher handed out 22 balloons atthe class party. She gave an equalnumber to each of 11 students. Howmany balloons did each student get?
balloons
4. Miss Simpson divided the classinto 3 equal reading groups. There are21 children in the class. How manychildren are in each reading group?
children7
2
6
4
NameLESSON 30.3
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CW148 Challenge
Problem Solving Write the Number SentenceWrite the number sentence. Solve.
1. Sharon mows 5 yards each dayfor a week. How many yardsdoes she mow in all?
2. Luis picks 15 apples from histree. He divides them equallyamong his 3 children. How manyapples does each child get?
3. Rita has 10 hens. Each hen lays6 eggs every week. How manyeggs do the hens lay in oneweek?
4. There are 32 radishes in Jimsgarden. Each day he eats 4radishes. How many days will ittake to eat all of the radishes?
NameLESSON 30.4
=
yards
=
apples
=
eggs
=
days8
8432
60
60610
5
5315