Number and Operations in Base Ten

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Practice 1. Write one million, one hundred forty-five thousand,

two hundred thirty-seven in standard form.

2. Write 87,192 in word form and expanded form.

Homework Helper Write 1,000,000 + 300,000 + 60,000 + 300 + 10 + 5 in standard form. Then read the number aloud.

standard form: 1,360,315

Remember: Commas separate the periods. Say the name of the period at each comma.

hundreds onestenshundredshundreds onesones tenstens

Thousands PeriodMillions Period Ones Period

3 6 01 3 1 5

Say: one million, three hundred sixty thousand, three hundred fifteen

Write 756,491 in expanded form and word form.expanded form: 700,000 + 50,000 + 6,000 + 400 + 90 + 1

word form: seven hundred fifty-six thousand, four hundred ninety-one

Need help? connectED.mcgraw-hill.com

Lesson 2

Read and Write Multi-Digit Numbers

Lesson 2My Homework21

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7. the way of writing a number using words

8. the usual way of writing a number, using digits

9. the way of writing a number as the sum of the value of each digit

10. each group of three digits on a place-value chart

Test Practice11. Which is the correct expanded form for 45,098?

A 45,000 + 98

B 4,000 + 5,000 + 9 + 8

C 40,000 + 500 + 90 + 8

D 40,000 + 5,000 + 90 + 8

expanded form

standard form

period

word form

Read each definition. Choose the correct word(s) to fill in the spaces.

Vocabulary Check

Problem SolvingComplete the expanded form.

3. 1 Check for Reasonableness

91,765 = 90,000 + + 700 + + 5

4. 798,054 = 700,000 + + + 50 + 4

5. 5,925,020 = 5,000,000 + + 20,000 + + 20

6. 2,802,136 = + 800,000 + + 100 + 30 +

22Need more practice? Download Extra Practice at connectED.mcgraw-hill.com

Vocab

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