Topic 1 Review

Adding Decimals

100

3.4 + 2.5

5.9

200

5.67 + 3.2

8.87

300

25.38 + 9.9

35.28

400

624 + 0.0318

624.0318

500

5308.1 + 132.114

5440.214

Subtracting Decimals

100

8.4 − 3.7

4.7

200

12.5 − 8.9

3.6

300

44.78 - 0.003

44.777

400

99.99 - 27.8

72.19

500

54298 - 13.87

54284.13

Multiplying Decimals

100

0.4 × 3

1.2

200

2.5 × 1.2

3

300

3.4 × 0.6

2.04

400

3879 x 22.1

85725.9

500

6.32 × 4.7

29.704

Dividing Decimals

100

6.4 ÷ 2

3.2

200

7.2 ÷ 0.6

12

300

12.5 ÷ 0.5

25

400

48.6 ÷ 0.3

162

500

135.24 ÷ 1.2

112.7

Multiplying Fractions

100

⅔ × ¼

⅙

200

½ × 3

1½

300

5/6 × 2/3

10/18 or 5/9

400

5 1/2 × 1 2/3

55/6 or 9 1/6

500

4½ × 2/3

3