Decimals Decimals Decimals

Add Decimals

100

33.3 + 12.4

45.7

200

43.56 + 2.45 =

46.01

300

27.06 + 3.4

30.46

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

Subtract Decimals

100

46.5 - 22.3

24.2

200

56.2 - 35.8

20.4

300

13.40 - 9

4.4

400

46.5 - 3.46

43.04

500

If a 10-metre piece of electrical tape has 0.037 metres cut from it, then what is the new length of the tape?

9.963 metres

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

Rounding Decimals

100

Round to the nearest thousandths

12312.5412

12312.541

200

Round to the nearest tenth

123.98

124

300

Round to the nearest hundredth

999.128

999.13

400

Round to the nearest ten-thousandth
7892.12899

7892.1290

500

Round to the nearest thousandth

78123.9989

78123.999