| 1) | 685 + 673 = | 2) | -67 − 555 = | 3) | 914 − 346 = |
| 4) | -710 + 379 = | 5) | 449 + 870 = | 6) | 875 + 696 = |
| 1) | 685 + 673 = 1358 | 2) | -67 − 555 = -622 | 3) | 914 − 346 = 568 |
| 4) | -710 + 379 = -331 | 5) | 449 + 870 = 1319 | 6) | 875 + 696 = 1571 |