add and subtract integers and rational numbers

Front

5 - (-9) =

Back

14

Front

-3 + (-2)

Back

-5

Front

-6 + 7

Back

1

Front

18 + (-13)

Back

5

Front

3 + (-9)

Back

-6

Front

-5.7 + 0.9

Back

-4.8

Front

-6.23 + 7.5

Back

1.27

Front

-3/7 + 4/5

Back

13/35

Front

- 1/3 + (-1/6)

Back

-1/2

Front

41 - 15 + (-29) =

Back

- 3