| 1) | -650 + 294 = | 2) | -799 − 642 = | 3) | -152 + 187 = |
| 4) | 727 − 73 = | 5) | 139 − 58 = | 6) | 482 + 922 = |
| 1) | -650 + 294 = -356 | 2) | -799 − 642 = -1441 | 3) | -152 + 187 = 35 |
| 4) | 727 − 73 = 654 | 5) | 139 − 58 = 81 | 6) | 482 + 922 = 1404 |