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