| 1) | -5 − 10 = | 2) | 1 − 7 = | 3) | -10 − 8 = | 4) | -7 − 9 = |
| 5) | 5 + 7 = | 6) | 10 + 1 = | 7) | -6 + 4 = | 8) | 5 − 9 = |
| 1) | -5 − 10 = -15 | 2) | 1 − 7 = -6 | 3) | -10 − 8 = -18 | 4) | -7 − 9 = -16 |
| 5) | 5 + 7 = 12 | 6) | 10 + 1 = 11 | 7) | -6 + 4 = -2 | 8) | 5 − 9 = -4 |