| 1) | 560 − 522 = | 2) | -2 + 384 = | 3) | 72 − 979 = |
| 4) | 741 + 374 = | 5) | 157 − 689 = | 6) | -954 + 824 = |
| 1) | 560 − 522 = 38 | 2) | -2 + 384 = 382 | 3) | 72 − 979 = -907 |
| 4) | 741 + 374 = 1115 | 5) | 157 − 689 = -532 | 6) | -954 + 824 = -130 |