| 1) | 9 + 10 = | 2) | 8 − 10 = | 3) | -2 + 8 = | 4) | -10 − 3 = |
| 5) | -7 − 6 = | 6) | -8 + 3 = | 7) | 7 − 1 = | 8) | 5 + 1 = |
| 1) | 9 + 10 = 19 | 2) | 8 − 10 = -2 | 3) | -2 + 8 = 6 | 4) | -10 − 3 = -13 |
| 5) | -7 − 6 = -13 | 6) | -8 + 3 = -5 | 7) | 7 − 1 = 6 | 8) | 5 + 1 = 6 |