Adding & Subtracting Rational Numbers Silverhawk Review

Adding Fractions

100

-1/5 + -3/5

-4/5

200

2/7 + -6/7

-4/7

300

-2/3 + -2/5

-1 1/15 or -16/15

400

-1 7/9 + 1/3

-1 4/9

500

1 1/5 + -2 3/4

-1 11/20

Adding Decimals

100

8.4 + 3.9

12.3

200

0.078 + -0.3

-0.222

300

-3.5 - 0.6

-4.1

400

6.5 - (-0.789)

7.289

500

-2.5 - (-3.1)

0.6

Subtracting Fractions

100

3/10 - 7/10 (simplify your answer)

-2/5

200

8/15 - 1/5 (Simplify your answer)

1/3

300

2/9 - (- 1/18)

5/18

400

-1 1/5 - 7/10

-1 9/10

500

-2 1/4 - (-3 1/3)

1 1/12

Subtracting Decimals

100

7 - 0.55

6.45

200

3.7 - (-0.42)

4.12

300

-9.8 - 14.05

-23.85

400

0.3004 - 1.9

-1.5996

500

-12 - (-0.781)

-11.219

Miscellaneous

100

-1/2 * 3/8

-3/16

200

3/10 - 0.212

0.088

300

-5/12 divided by -1/3

Write your answer as a simplified mixed number

1 1/4

400

-2 1/4 + -0.85

-3.1 or -3 1/10

500

7.75 + 3 7/10 - 15

-3.55 or -3 11/20