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