| 1) | 1 − 8 = | 2) | -4 − 2 = | 3) | 5 + 1 = | 4) | -5 − 6 = |
| 5) | -3 − 9 = | 6) | 7 + 4 = | 7) | 7 + 1 = | 8) | -7 − 3 = |
| 1) | 1 − 8 = -7 | 2) | -4 − 2 = -6 | 3) | 5 + 1 = 6 | 4) | -5 − 6 = -11 |
| 5) | -3 − 9 = -12 | 6) | 7 + 4 = 11 | 7) | 7 + 1 = 8 | 8) | -7 − 3 = -10 |