| 1) | -329 + 616 = | 2) | -512 − 161 = | 3) | 379 + 276 = |
| 4) | -982 − 967 = | 5) | -720 + 971 = | 6) | 811 + 449 = |
| 1) | -329 + 616 = 287 | 2) | -512 − 161 = -673 | 3) | 379 + 276 = 655 |
| 4) | -982 − 967 = -1949 | 5) | -720 + 971 = 251 | 6) | 811 + 449 = 1260 |