Chapter 7 Math Review

Standard Form

100

What is the standard form of "four hundred thirty-two thousand, one hundred five"?

432,105

200

Write the standard form for: 2 ten-thousands,7 hundreds, 4 tens, 3 ones.

20,743

300

Write the number two thousand, five hundred two in standard form

2,502

400

What number is represented by 1 thousand, 28 hundreds, 3 tens, and 9 ones

3,839

500

What number is represented by 237 tens, 8 ones

2,378

Word Form

100

Write "28,304" in word form.

Twenty-eight thousand, three hundred four

200

What is two hundred six written in word form?

206

300

Read this number and write it in words: 405,607.

four hundred five thousand, six hundred seven

400

Write the number in word form for this description: "Three hundred twelve thousand, nine hundred eighteen."

312,918

500

A class collected 263,419 steps for a fundraiser. Write this number in word form

two hundred sixty-three thousand, four hundred nineteen

Expanded Form

100

Write the expanded form of 4,205

4000+200+5

200

Write the expanded form of 56,301

50,000+6,000+300+1

300

Write the expanded form of 302,408

300,000+2,000+400+8

400

200,000 + 4,000 + 300 + 20 + 7, write the number in standard form

204,327

500

Write the expanded form for the number made by: 8 in the hundred-thousands place, 3 in the ten-thousands, 0 in the thousands, 6 in the hundreds,  and 2 in the ones

830,604

Composing/ Decomposing

100

Decompose 4,321 into thousands, hundreds, tens, and ones

4 thousands, three hundreds, two tens, and 1 one

200

Compose a number that has 3 ten-thousands, 8 thousands, 0 hundreds, 5 tens, and 6 ones. What is it?

38,056

300

True or false (explain why)  4,038 can be decomposed as:

4 thousands, 13 tens, and 8 ones

False

400

A number can be written as 70,000 + 5,000 + 200 + 40 + 8. Decompose it into place-value components and write the standard form

7 ten thousands, 5 thousands, 2 hundreds, 4 tens, 8 ones; 75,248

500

Given the parts 300,000 + 20,000 + 4,000 + 600 + 30 + 9, (a) write the number in standard form, (b) write it in word form, (c) identify the digit in the thousands place.

324,639; three hundred twenty-four thousand, six hundred thirty-nine; 4 is in the thousands place

Rounding

100

Round 347 to the nearest ten

350

200

Round 582 to the nearest hundred

600

300

 Round 4,678 to the nearest thousand.

5,000

400

Mary bought a box of pencils.  The number of pencils, when rounded to the nearest ten, is 480.  How many pencils could the box include?  (there can be multiple correct answers)

475 through 484 

500

Wanda rounds 233 to 230.  To what place did Wanda round?

tens place