5th Grade Math Decimals Review

Multiplying Powers of 10

100

34.6 x 10³

34,600

200

798 x 10

7,980

300

27.62 x 100

2,762

400

8.9 x 1,000

8,900

500

0.459 x 10²

45.9

Dividing Powers of 10

100

6.7 % 10

.67

200

7.89 % 100

0.0789

300

75.2 % 10

7.52

400

4.6 % 10¹

.46

500

65.3 % 10²

0.653

Rounding Decimals

100

Round 789.23 to the nearest tenth 

789.0

200

Round 36.25 to the nearest tenth

36.3

300

Round 46.78 to the nearest whole number

50

400

Round 465.221 to the nearest hundredth

465.20

500

Round 569.457 to the nearest hundredth

569.460

Adding and Subtracting Decimals

100

45.21 + 36.79

82

200

78.25 - 54.27

23.98

300

7.9 + 16.87

24.77

400

5.46 - 2.1

3.36

500

100 - 45.88

54.12

Word Problems

100

Name the greatest decimal:

5.6

5.06

5.66

5.6

200

Name the decimal with the least value:

8.99

9.56

7.55

7.55

300

Order the decimals from greatest to least:

1.42

1.044

1.68

1.68, 1.42, 1.044

400

Amanda went shopping for some chocolate for baking. At one store, she bought 6.02 ounces of chocolate in bars. At another store, she bought 9.99 ounces of chocolate chips. How much chocolate did she buy in all?

16.01 ounces

500

In March it rained 0.97 inches. It rained 0.67 inches less in April than in March. How much did it rain in April?

0.3 inches