add/subtract decimals
multiply decimals
divide decimals
powers of ten
100
33.3 + 12.4
45.7
100

3 x 0.5

1.5

100

0.6 divided by 6

0.1

100

8.5 divided by 10

.85

200

43.56 - 2.45 =

41.11

200

2.45 x 9

22.05

200

1.8 divided by 6

0.3

200

1.28 x 102  or 1.28 x 100

128

300

13.40- 9

4.4

300

.3 x 0.85

0.255

300

14.54 divided by 0.4

36.35

300

996.9 divided by 100

9.969

400

13.40 + 9.8

23.20

400

0.26 x 2.5

0.65

400

4.05 divided by 1.5

2.7

400

6.14 multiplied by 10 or 6.14 x 100

61400

500

Mrs. Servinski drove 11.3 mi to the dentist, 7.5 mi to the library, and 5.8 mi back home. How far did she travel?

24.6 mi

500

0.18 x 30.6

5.508

500

0.148 divided by 0.08

1.85

500

79.5 x 1,000

79,500

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