| 1) | -156 − 755 = | 2) | -158 + 345 = | 3) | -837 − 92 = |
| 4) | -894 − 767 = | 5) | 442 − 845 = | 6) | 943 − 985 = |
| 1) | -156 − 755 = -911 | 2) | -158 + 345 = 187 | 3) | -837 − 92 = -929 |
| 4) | -894 − 767 = -1661 | 5) | 442 − 845 = -403 | 6) | 943 − 985 = -42 |