| 1) | -865 + 629 = | 2) | 773 + 234 = | 3) | 872 − 155 = |
| 4) | -620 + 687 = | 5) | -811 + 833 = | 6) | 162 − 877 = |
| 1) | -865 + 629 = -236 | 2) | 773 + 234 = 1007 | 3) | 872 − 155 = 717 |
| 4) | -620 + 687 = 67 | 5) | -811 + 833 = 22 | 6) | 162 − 877 = -715 |