| 1) | 140 − 281 = | 2) | -577 + 341 = | 3) | -102 + 789 = |
| 4) | -517 − 597 = | 5) | -131 − 956 = | 6) | 313 − 334 = |
| 1) | 140 − 281 = -141 | 2) | -577 + 341 = -236 | 3) | -102 + 789 = 687 |
| 4) | -517 − 597 = -1114 | 5) | -131 − 956 = -1087 | 6) | 313 − 334 = -21 |