Estimating Decimals
Multiplying Decimals
Dividing Decimals
Exponents
Story Problems
100

Estimate 4.5 x 8.3 =

40

100

4.7 x 6 =

28.2

100

3.6 ➗ 12 =

(round answer to tenths place)

0.3

100

3=

27

200

Estimate 9.8 ➗ 2.9 =

3

200

38.8 x 4 =

155.2

200

57.5 ➗ 5 =

(round answer to tenths place)

11.5

200

54 =

625

300

Estimate 120.3 x 3.9

480

300

9.8 x 21 =

205.8

300

3.21 ➗ 1.2 =

(round answer to tenths place)

2.7

300

6=

216

400

Estimate 172.2 ➗ 24.5 =

7 or 9

400

144.7 x 2.1 =

303.87

400

.0847 ➗ 2.2 =

(round answer to tenths place)

.04

400

8=

4,096

400

Roselyn went to iCandy and bought 22.8 pounds of candy. She divided the candy equally and packed it in boxes. If each box weighed 3.8 pounds, how many boxes did she use in total?

= 6

500

Estimate 651.2 ➗ 78.1 =

8

500

37.1 x 26.2 = 

972.02

500

1.936 ➗ 5.51 =

(round answer to tenths place)

0.4

500

213 =

8,192
500

James runs a race at a rate of 6 minutes and 41 seconds per mile. If the race was 2.3 miles long, how long did it take James to finish? Round your answer to the hundredths place.

= 14.74 minutes

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