| 1) | -237 + 619 = | 2) | -835 + 672 = | 3) | 330 − 731 = |
| 4) | 430 + 260 = | 5) | 892 + 530 = | 6) | -805 − 427 = |
| 1) | -237 + 619 = 382 | 2) | -835 + 672 = -163 | 3) | 330 − 731 = -401 |
| 4) | 430 + 260 = 690 | 5) | 892 + 530 = 1422 | 6) | -805 − 427 = -1232 |