| 1) | 583 + 315 = | 2) | 519 − 851 = | 3) | 643 − 381 = |
| 4) | -812 − 950 = | 5) | -336 + 447 = | 6) | -852 + 796 = |
| 1) | 583 + 315 = 898 | 2) | 519 − 851 = -332 | 3) | 643 − 381 = 262 |
| 4) | -812 − 950 = -1762 | 5) | -336 + 447 = 111 | 6) | -852 + 796 = -56 |