Unit 1 Math Review

Place Value

100

What is the value of the underlined digit? 487,053

7,000

200

What is the number written as: seven hundred twenty thousand, six hundred fourteen

720,614

300

What is 82,406 written in expanded form?

80,000 + 2,000 + 400 + 6

400

How does the value of the 7 in 7,326 compare to the value of the 7 in 57,418?

The digits have the same value.

500

How does the value of the 4 in 4,582 compare to the value of the 4 in 26,947?

The 4 in 4,582 is 100 times greater.

Comparing

100

Which symbol makes the comparison true?

56,420 ___ 56,402

>

200

Which comparison is correct?

A. 45,678 > 45,876

B. 62,341 < 62,314

C. 89,205 > 89,025

D. 73,999 < 73,899

C. 89,205 > 89,025

300

Which number is the greatest?

A. 304,521

B. 340,251

C. 304,251

D. 340,215

B. 340,251

400

Which number has the least value?

A. 81,902

B. 81,290

C. 81,920

D. 81,029

D. 81,029

500

Arrange the numbers from least to greatest.

45,210

45,120

45,201

45,120; 45,201; 45,210

Rounding

100

What is 6,748 rounded to the nearest hundred?

6,700

200

What is 35,462 rounded to the nearest thousand?

35,000

300

What is 148,750 rounded to the nearest ten thousand?

150,000

400

Which number rounds to 400 when rounded to the nearest hundred?

A. 349

B. 451

C. 352

D. 499

C. 352

500

A number rounds to 7,000 when rounded to the nearest thousand.

Which could be the number?

A. 6,421

B. 6,678

C. 7,650

D. 8,102

B. 6,678

Adding

100

8,425 + 6,789=

15,214

200

156,890+65,258=

222,148

300

A student added:

   48,625

+ 27,894

---------

75,419

Is the answer correct?

A. Yes, because the sum is 75,419.

B. No, the correct sum is 76,519.

C. No, the correct sum is 77,419.

D. No, the correct sum is 78,419.

B. No, the correct sum is 76,519.

400

A school collected 18,675 cans in April and 24,890 cans in May.

How many cans did they collect altogether?

43,565

500

Which equation could be used to solve:

□ − 3,456 = 8,920

A. 8,920 − 3,456

B. 8,920 + 3,456

C. 3,456 + 8,290

D. 3,456 − 8,920

B. 8,920 + 3,456

Subtracting

100

52,804 − 27,965=

24,839

200

600,000-52,985=

547,015

300

A store sold 32,450 toys in December and 18,975 toys in January.

How many more toys were sold in December?

13,475

400

  48,625

- 27,894

---------

21,731

Is the answer correct?

No, the correct answer is 20,731.

500

Which equation can be used to solve:

□ + 735 = 1,264

A. 1,264 + 735

B. 1,264 − 735

C. 735 − 1,264

D. 735 + 735

B. 1,264 − 735