DIRECTIONS:Perform the indicated operations on integers.

A. Find the sum

1. +5 + (+8) =

2. - 13 + (+4) =

3. - 9 (-2) =

4. +7 + (+9) =

5. +4 + (-1) =

6. - 11 + (-4) =

7. +23 + (-20) =

8. - 16 + (-8) =

9. +2 + (-1) =

10. + 31 + (+11) =​