Math Olympics[Date]

2nd Grade

Greenbriar West Elementary

By Darren McKnight

Math Olympics• There are 12 different rounds

– Every round of questions has three sets of questions that are regular questions (each one worth one point) and one set of Bonus questions (worth more points)

• Provide the sheets to the children in two packets of six sheets each.– When finished with the first packet turn their packet in and they then

pick up the second packet

• Will go for 50-60 minutes before we stop• Will award a gold, silver, and bronze medal

– Ribbons for all participants

Math Olympics Rounds

• Numbers and Graphing• Addition and Subtraction Concepts• Addition and Subtraction Strategies• Number Patterns to 100• Money• Time• Two-Digit Addition and Subtraction• Number Patterns to 1,000• Fractions

Olympic ScoresheetName NG AC SC AS SS 100 $$$ Time 2A 2S 1,000 Frac Total

Olympic ScoresheetName NG AC SC AS SS 100 $$$ Time 2A 2S 1,000 Frac Total

Numbers and Graphing (NG)Name

BONUS (2pts for each row)Complete the patterns below:

1, 2, 3, 4, 5,__, __2, 4, 6, 8, 10, __, __5, 10, 15, 20, __, __3, 7, 11, 15, __1, 3, 5, 7, 9, __, __3, 6, 9, 12, 15, __

•Joe has 6 dogs, Colin has 4 cats, and Jeremy has 5 hamsters. Draw bar graph showing the facts above.

Number of Pets

Using the graph above:-Who has the most cars?_______-Does Katie have more cars than Grace? _____-Who has the least cars? ______ -How many cars the four kids have all together? ____

Grace

Katie

Anna

Mark

•Joe has . How many spiders does Joe have?_______•Tom has and Maryhas . Who has more ? ____----------------------------------------------------•How many rockets are there in the picturebelow? ______•Are there more cars than rockets? _____

Addition Concepts (AC)Name

BONUS (3pts each)

•Dan has and then getsmore for Christmas. How many stuffedrabbits does Dan have? ______•How many dark cubes are shown? _____

-Frederick has and Ben giveshim . How many spiders doesFrederick have? ______

+

-Katie has a domino andMiraj has a domino . Whatare the total number of dots on these two dominos? _______

-Ms. Hosey’s class went to Pizza Hut forlunch and they ordered two cheese pizzas andtwo pepperoni pizzas. How many pizzas didthey order? _______

-Hannah scored 2 goals in soccer on Saturdaymorning and then scored 3 more goals in a gameon Saturday afternoon. Finally, on Sunday shescored 4 more goals. How many goals did Hannah score over the weekend? ______-Justin ate two tacos, three burritos, and threetostados. How many things did Justin eat? _____-Ms. Hosey has no babies. In May she will haveone. How many babies will Ms Hosey have? ____

•Edom has and then gets more for Christmas. How many cats does Edom have? ______•How many dark cubes are shown? _____

-Mark has and Ben giveshim . How many cars doesMark have? ______

+

Subtraction Concepts (SC)Name

BONUS (3pts each)

•Joy has and then givesto Joanna. How many stuffed rabbits does Joy have left? ______•How many dark cubes are left? _____

-Bruce has and then givesTom . How many spiders doesBruce have left? ______

Take away

•Stephanie has and then gives to Joe for Christmas. How many cats does Stephanie have left? ______•How many dark cubes are left? _____

-Chip has then givesJim . How many cars doesChip have left? ______

Take away

•Jim had five cookies and he gave twoto his friend Joe. How many cookiesdoes Jim have left? ____•Pallu had ten marbles in her pocketwhen she left for school but she dropped six while walking to school.How many did she have left? ____

•Grace had 12 grapes in her lunch. She gave three grapes to each offour of her friends. How many grapesdid she have left for her lunch?____•Mary ate three candies. She now has four candies. How many did she start with? _____

Addition Strategies (AS)Name

BONUS (2pts each) 7 7 7 7 7 7+1 +6 +8 +5 +2 +7

6+2=____ 8+3=____ 4+2=____6+4=____ 8+6=____ 7+2=____6+5=____ 8+2=____ 6+2=____

7 6 8 7 4 6+8 +8 +8 +6 +5 +4

1 1 1 1 1 1+1 +6 +8 +5 +2 +7

2+2=____ 3+3=____ 4+4=____5+5=____ 6+6=____ 7+7=____4+3=____ 5+2=____ 6+1=____

7 6 8 7 4 6+3 +2 +0 +1 +2 +3

•Sue has six pretzels. Mark gaveher five more pretzels. Howmany pretzels does she have all together?_____•Ben has five pencils then he gotfour more for his birthday. Howmany pencils does hehave now? _____

•Amanda had 12 baseballs but then Jimmy and Louise each gave hertwo more baseballs each. How many baseballs does Amanda have now? ___•Tony had 12 raisins with lunch then3 raisins with his snack. How manyraisins did Tony have? _____

Subtraction Strategies (SS)Name

BONUS (3pts each) 4 7 6 8 3 8-1 -6 -4 -5 -2 -7

2-2=____ 3-3=____ 4-4=____5-4=____ 6-4=____ 7-4=____4-3=____ 5-2=____ 6-1=____

7 6 8 7 4 6 -3 -2 -0 -1 -2 -3

5 8 7 5 7 9-1 -6 -4 -5 -2 -7

2-1=____ 3-1=____ 9-4=____5-1=____ 6-1=____ 9-3=____4-1=____ 5-4=____ 9-1=____

9 9 9 8 7 4 -3 -2 -0 -1 -2 -3

•Mr Hilkert had five awards to give out at the assembly. He gavethree awards to the first grade.How many awards does he haveleft to give out? _____•Olivia had ten bagels but she gavetwo to her sister. How many does she have left? ____

•Emily had 14 valentines then she gave3 to Grace, 2 to Louise, and 6 to Ava. How many does she have left? _____•During the day it was 40 degrees butduring the night the temperaturewent down 15 degrees. How cold wasit at night?_____

Numbers Patterns to 100 (100)Name

BONUS (3pts each)

Fill in the blanks below:

10, 20, 30, ___, 50, 60, ___15, 30, 45, 60, __, 9045, 50, ___, 60, 65, ___90, 92, 94, 96, ___, 10071, 73, 75, 77, 79, ___, ___20, 30, 40, ___, 60, ___

•Pallu had 50 baseball cards thenshe got 20 more baseball cards for her birthday. How many cards doesPallu have now? ____•Grace had 10 pencils, Hannah had30 pencils, and Amanda had 40pencils. How many pencils do they have all together? ______

Count from zero to 100by 5’s:0, 5, ___, 15, ___, ___, 30, ___,40, ___, ___, ____, 60, 65, ___75, ___, ____, ____, 95, 100Count from zero to 100 by 10’s:0, 10, ___, ___, ___, 50, ___, 70, ___, ____, 100

•Nitya had 30 marbles but she lost 10. How many marbles does Nitya have left? _____

30apples

20bagels

50eggs

10lemons

40cookies

•From the picture above of things your Dadbuys from the grocery store, circle three itemsthat add up to 100 things.

Money ($$$)Name

BONUS (2pts each)

5

-How many pennies are needed to make ten cents? ________

-How many nickels are needed to make ten cents? ________

-How many dimes are needed to make ten cents? ________

*Circle the coins that add up to 12 cents. 5

55 5

*How much money is shown below? ____

Circle the number of nickels equal to 2 dimes.

5

5

5

5

10 5

If Mark had

and Mickey had .

-Who has the most money? ____-How much money do they haveall together? ______

55

•If you bought a pencil for 30 cents, using 50 cents, how much change would you get? ____•How many nickels are in one quarter? ___•Circle the fewest number of coins to make 37 cents? 5

55 10

25c

25c

25c

Time (Time)Name

BONUS (2pts each)

•Draw the time on the clock for 1:50.•Ben got to school at 9:15am. He left to go home 15 minutes later since he did not feel well. What time did he go home? _____•Taylor left Taco Bell at 1:30. He took 20 minutes to eat there. What time had he arrive at Taco Bell? ____

:

Write thetime undereach clock.

•Ms Hosey went to the GBWcarnival. The table below showswhat she did.

At what event did she spend the most time? ______At what event did she spend the least time? ______How long was she in the moon bounce? _________

Started Finished

Dunk Tank 9:10 9:20

Moon Bounce 9:20 9:40

Monster Slide 9:40 10:00

Tug of War 10:00 10:30

Write thetime besideeach clock.

::

:::

:

Two-Digit Addition (2A)Name

BONUS (2pts each)

Fill in the blanks:44+___ = 64 30+___= 50___+30 = 70 19+___ =69 5 tens + 2 tens = ____ tens 50 + 20 = ____Write the number sentence that is the same as + =

•Mr. Hilkert brought ten friends to dinner while Mr. Rice brought fifteen friends to dinner. How many friends total did Mr. Rice and Mr. Hilkert bring to dinner? _____•A dozen is the same as “12”. Mickey brought in one dozen cookies and Avaalso brought in a dozen cookies. How many cookies did they have total? _____

35 40 14 30 60 70+22 +36 +53 +24 +30 +22

42+20=___ 64+30=____ 27+50=___ 14+23=____29+10=___ 52+50=____

47 14 36 67 77 19+25 +36 +56 +24 +34 +22

•Mr. McKnight ate 10 donuts, Mrs.McKnight ate 15 donuts, and OliviaMcKnight ate 10 donuts. How manydonuts did the McKnights eat? _____

Two-Digit Subtraction (2S)Name

BONUS (2 pts each) 14 17 26 28 43 58-11 -12 -14 -25 -22 -37

22-12=____ 63-33=____ 42-14=____35-14=____ 61-43=____ 72-44=____44-23=____ 50-24=____ 61-16=____

27 56 38 70 54 60-13 -12 -20 -41 -32 -23

35 40 14 30 60 70-22 -36 -13 -24 -30 -22

42-20=___ 64-30=____ 27-10=___ 14-13=____29-10=___ 52-50=____

Fill in the blanks:44 -___ = 24 30 -___= 10___- 30 = 20 69 -___ = 29 6 tens - 3 tens = ____ tens 60 - 30 = ____Write the number sentence that is the same as

- =

42-25=___ 64-37=____ 25-17=___ 24-16=____26-18=___ 42-25=____

Numbers to 1000 (1000)Name

BONUS (4pts) 100100

100

100

100100

100100

100

The three sticks above have the lengthsmarked on them. If you laid themend-to-end, how long would they be all together? ______

Complete the patterns below:

100, 200, 300, 400, 500,___, ___200, 400, 600, 800, _____850, 900, 950, _____300, 500, ____, 900100, 300, 500, ____, 900150, 350, 550, 750, ____

400 600 700 150+200 +300 +300 +500

100 + 200 + 500 = _____300 + 300 + 100 = _____200 + 100 + 600 = _____

•Edom had 500 marbles, Shreatihad 300 marbles, and Anna had100 marbles. How many marblesdo they have all together? _____•Every time Jeremy mows the yardhis father gives him $200. If hemows the yard two times, how muchmoney does he get? _____

Fractions (Frac)Name

BONUS (2pts each)

•The stick below is divided intoequally sized pieces. What fractionof the stick is each section? _____

•If a block is broken into four pieces. If you have two of these pieces then what fraction of the total blockdo you have? _____

•Circle the largest fraction: 1 1 1 2 3 4•There are ten students in a class.If five students left for strings, what fraction of the class stayedin the classroom? 1 1 1 5 3 2

•If you break a cookie into two equal pieces, what is each part called?(circle one) one-quarter one-half•What is each part of the circle belowcalled? 1 1 1 4 2 3 (circle one)

•A pizza is cut into six pieces. If you eat three pieces of pizza, what fractionof the pizza did you eat? _____•At your birthday party your mother cut your cake into eight pieces. Atthe end of the party there were twopieces left. What fraction of the cakewas left over? _____