| 1) | -641 + 799 = | 2) | -448 − 709 = | 3) | -895 + 937 = |
| 4) | 364 + 15 = | 5) | -500 − 354 = | 6) | -593 − 691 = |
| 1) | -641 + 799 = 158 | 2) | -448 − 709 = -1157 | 3) | -895 + 937 = 42 |
| 4) | 364 + 15 = 379 | 5) | -500 − 354 = -854 | 6) | -593 − 691 = -1284 |