math flash place value...math flash place value by monica yuskaitis a teacher-led presentation...
TRANSCRIPT
Math Flash Place Value
By Monica Yuskaitis
A Teacher-Led Presentation
Virginia Standard of Learning (SOL) 4.1 The student will identify (orally and in writing) the place value for each digit in a whole number
expressed through millions;
• This presentation is a resource to assist with teaching students to read large numbers by identifying periods an place value.
• Slide #6 can be printed and used in math notebooks.
• There is opportunity to assess student understanding, so make sure students have pencil and paper (or math notebooks) available.
The ones period
is also known as the UNITS period.
1. Read the numbers before the comma as if you were reading in the one’s period. (Example: 485)
2. Then name the period you are in when you get to the comma.
3. You don’t have to name the ones period. 4. You DON’T say the word AND in these numbers
thousand
thousand
thousand
million
thousand
million
thousand
million
thousand
million
thousand
million
thousand
million
thousand
million
thousand
million
thousand
million
thousand
million
thousand
Did you notice that all three periods have a tens place and a hundreds place?
Name the place value of the 8 in this number.
Name the place value of the 8 in this number.
Name the place value of the 0 in this number.
Name the place value of the 4 in this number.
Name the place value of the 2 in this number.
Name the place value of the 3 in this number.
Name the place value of the 8 in this number.
Name the place value of the 2 in this number.
Name the place value of the 7 in this number.
Name the place value of the 3 in each number.
Did you notice that all three periods have a tens place and a hundreds place?
Name the place value of the 5 in each number.
California Standard Addressed
1.1 Count, read, and write whole numbers to 10,000.
Number Sense
Third Grade
California Standard Addressed
1.3 Identify the place value for each digit in numbers to 10,000
Number Sense
Third Grade
Objectives
• Be able to read numbers to hundred thousand
• Be able to identify the place value of each digit in numbers up to one hundred thousand
• Know how to write a number in word form
Vocabulary
• Digits – numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
• Place value – tells you how much each digit stands for
• Periods – A group of 3 places used for the digits in large numbers. Periods are usually separated by commas.
Understanding Place Value
1 ten is 10 times 1 one
10 1
Understanding Place Value
1 hundred is 10 times 1 ten
100 10
Understanding Place Value
1,000 100
1 thousand is 10 times 1 hundred
What is the value of the underlined digit?
7 4 3, 9 8 2 Hundred
What is the value of the underlined digit?
7 4 3, 9 8 2 Ten
What is the value of the underlined digit?
7 4 3, 9 8 2 One
How to read large numbers
690,492
Thou
san
d
Ones
Read the numbers before the comma as if you were reading in the one’s column. Say the period you are in when you get to the comma except for the one’s period.
Tip
690,492
Do not use “and” when reading whole numbers. The word “and” will be used when you are reading numbers with decimals.
Six hundred and ninety-thousand, and four hundred and ninety-two.
Read this number
133,472
One hundred thirty-three thousand,
four hundred seventy-two
Read this number
643,582
Six hundred forty-three thousand,
five hundred eighty-two
Read this number
54,931
Fifty-four thousand,
nine hundred thirty-one
Read this number
530,801
Five hundred thirty thousand,
eight hundred one
Read this number
4,268
Four thousand,
two hundred sixty-eight
Read this number
305,108
Three hundred five thousand,
one hundred eight
Credits
Illustrations from:
• Clipart from ClickArt 125,000 Deluxe Image Pak, T/Maker Co., Broderbund Software, Inc.
What is the standard form of?
4,367
4,367
What is the expanded form of?
4,367
4,000 + 300 + 60 + 7
What is the expanded form of?
56,803
50,000 + 6,000 + 800 + 3
What is the standard form of?
6,823
6,000 + 800 + 20 + 3
What is the word form of?
4,367
four thousand, three hundred sixty-seven
What are the periods of this number?
684,367,671,690,492
Bill
ion
Mill
ion
Tho
usa
nd
On
es
How to read large numbers
684,367,671,690,492
Bill
ion
Mill
ion
Tho
usa
nd
On
es
Read the numbers before the comma as if you were reading in the one’s column. Say the period you are in when you get to the comma except for the one’s period.
Read this number
4,371,024
four million, three hundred seventy-one thousand, twenty-four
Read this number
973,104
nine hundred seventy-three thousand, one hundred four
Read this number
384,133,472
three hundred eighty-four million, one hundred thirty-three thousand, four hundred seventy-two
Read this number
1,874,304,039,270
one trillion, eight hundred seventy-four billion, three hundred four million, thirty-nine thousand, two hundred seventy
Read this number
4,829,905
four million, eight hundred twenty-nine thousand, nine hundred five
Remember that each period has three place values within the period
684,367,671,690,492
What place value is the 8 in this number?
4,829,905
Hundred thousands
What place value is the 2 in this number?
4,829,105
Ten thousands
What place value is the 4 in this number?
4,829,105
Millions
What place value is the 9 in this number?
4,829,105
Thousands
What place value is the 6 in this number?
654,829,105
Hundred millions
What place value is the 5 in this number?
654,829,103
Ten millions
What place value is the 7 in this number?
254,729,103
Hundred thousands
What place value is the 2 in this number?
254,789,103
Hundred millions
What place value is the 3 in this number?
234,789,104
Ten millions
What place value is the 3 in this number?
264,789,134
Tens
What is this number in standard form?
Ninety thousand, four hundred eight
90,408
What is this number in standard form?
Seven million, twenty-two thousand, two hundred
7,022,200
What is this number in expanded form?
7,021,500
7,000,000 + 20,000 + 1,000 + 500