Topic 1 Review

Powers of Ten

100

5 x 10⁴

50,000

200

9 x 10²

900

300

8 x 10¹

80

400

13 x 10⁵

1,300,000

500

26 x 10⁰

26

Rounding

100

Round to the underlined digit:

9.152

9.2

200

Round to the underlined digit:

6.5436

6.54

300

Round to the underlined digit:

0.758

0.76

400

Round to the underlined digit:

11.763

12

500

Round to the underlined digit:

137.0921

137.09

Expanded Form

100

Write the following in expanded form:

5,021

(5 x 1,000) + (2 x 10) + (1 x 1)

200

Write the following in expanded form:

756.1

(7 x 100) + (5 x 10) + (6 x 1) + (1 x 0.1)

300

Write the following in expanded form:

36.572

(3 x 10) + (6 x 1) + (5 x 0.1) + (7 x 0.01) + (2 x 0.001)

400

Write the following in expanded form:

600.703

(6 x 100) + (7 x 0.1) + ( 3 x 0.001)

500

Write the following in expanded form:

125.68

(1 x 100) + (2 x 10) + (5 x 1) + (6 x 0.1) + (8 x 0.01)

Decimals

100

Write the following as a decimal:

7/10

0.7

200

Write the following as a decimal:

23/100

0.23

300

Write the following as a decimal:

4/100

0.04

400

Write the following as a decimal:

25/1000

0.025

500

Write the following as a decimal:

103/1000

0.103

Fractions

100

Write the following as a fraction:

0.85

85/100

200

Write the following as a fraction:

0.061

61/1000

300

Write the following as a fraction:

0.3

3/10

400

Write the following as a fraction:

0.081

81/1000

500

Write the following as a fraction:

0.104

104/1000