Operations with Decimals - Positives only

Adding Decimals

100

4.99 + 22.89

27.88

200

7.238 + 6.9

14.138

300

15 + 9.44

24.44

400

16.17 + 32.48

48.65

500

14.72 + 11.0011

25.7211

Subtracting Decimals

100

43.18 – 25.08

18.1

200

16.53 – 11.27

5.26

300

23 – 8.905

14.095

400

24.33 - 6.87 

17.46

500

29.4 - 6.89 

22.51

Multiplying Decimals

100

7 ∙ 0.5

3.5

200

0.072 ∙ 0.12

0.00864

300

6.94 ∙ 24

166.56

400

63.4 ∙ 1.22

77.348

500

9.9 ∙ 1.9

18.81

Dividing Decimals by Integers

100

10.8 ÷ 4

2.7

200

81.6 ÷ 24

3.4

300

45.6 ÷ 12

3.8

400

0.48 ÷ 6

.08

500

102.9 ÷ 21

4.9

Dividing Decimals by Decimals

100

7.65 ÷ 1.7

4.5

200

10.4 ÷ 0.8

13

300

3.3 ÷ 0.11

30

400

13 ÷ 3.25

4

500

Cynthia ran 17.5 laps in 38.5 minutes.  If she ran each lap at the same pace, how many minutes did it take her to run 1 lap?

2.2 minutes or 2 minutes 12 seconds