Decimals Decimals Decimals

add and subtract decimals

100

33.3 + 12.4

45.7

200

43.56 - 2.45 =

41.11

300

13.40- 9

4.4

400

13.40 + 9.8

23.20

500

Ms. Cearns drove 11.3 km to the dentist, 7.5 km to the library, and 5.8 km back home. How far did he travel?

24.6 km

multiply decimals

100

3 x 0.5

1.5

200

2.45 x 9

22.05

300

.003 x 0.85

0.00255

400

0.26 x 2.5

0.65

500

0.18 x 30.6

5.508

divide decimals

100

0.6 divided by 6

0.1

200

1.8 divided by 6

0.3

300

14.54 divided by 0.4

36.35

400

4.05 divided by 1.5

2.7

500

0.148 divided by 0.08

1.85

powers of ten

100

8.5 divided by 10

.85

200

1.28 x 10²

128

300

9.969 divided by 100

0.09969

400

6.14 multiplied by 10⁴

61400

500

79.5 x 10,000

795,000