Unit Review

Adding or subtracting decimals

100

12.76 + 10.31=

23.07

200

26.39 - 17.18=

9.21

300

89.095 + 20.387 =

109.482

400

99.132 + 86.81=

185.942

500

32.28 - 18.589

13.691

Adding Fractions with Unlike Denominators

100

2/9 + 2/3

8/9

200

5/12 + 1/8

13/24

300

2/8 + 5/12

2/3

400

5/8 + 5/6

1 11/24

500

1/2 + 1/8 + 1/4

7/8

Subtracting Fractions or Mixed numbers with Unlike Denominators

100

7/8 - 1/3

13/24

200

7/10 - 2/4

1/5

300

13 1/12 - 8 1/4

4 5/6

400

1/2 - 3/10

1/5

500

6 1/8 - 2 5/6

3 7 /24

Adding Mixed Numbers

100

5 2/8 + 3 1/8

8 3/8

200

5 3/7 + 2 5/7

8 1/7

300

4 1/10 + 6 1/2

10 3/5

400

1 7/12 + 2 3/8

3 23/24

500

2 3/4 + 7 3/5

10 7/20

Rounding decimals

100

Round to the nearest tenth:    13.72

13.7

200

Round to the nearest tenth:     24.890

24.9

300

Round to the nearest hundredth    652.236

652.24

400

Round to the nearest thousandth        881.1235

881.124

500

Round to the nearest thousandth    12.7498

12.750