Unit 3 Review

Basic Place Value

100

Write in standard form: 400 + 30 + 7

437

200

Write this number in expanded form: 7,804

7,000+800+4

300

Write in standard form: 2,000+300+60+7

2,367

400

Write 343,978 in expanded form.

300,000 + 40,000 + 3,000 + 900 + 70 + 8

500

Write the standard form of this number.

50,000+400+6

50,406

Place Value Identification

100

What is the digit in the hundreds place value: 4,507

5

200

What is the value of the 4 in 54,988

4,000

300

What are the values of the 5's in the number: 305,495

5,000; 5

400

What are the values of the 9s in the number: 1,297,940

90,000 and 900

500

Write in standard form:

500,000+6,000+800+70

506,870

Addition

100

235+464

699

200

548+123

671

300

988+317

1305

400

439+889

1328

500

5,848+5,497

11,345

Adding/Subtracting decimals

100

3.14+6.98

10.12

200

95.0-2.1

92.9

300

25.42-12.09

13.33

400

38.05+42.78

80.83

500

56.32+26.09

82.41

Subtraction

100

25-12

13

200

34-19

15

300

675-99

576

400

432-235

197

500

806-89

717