| 1) | 2 + 229 = | 2) | 83 − 601 = | 3) | 636 + 294 = |
| 4) | 432 + 416 = | 5) | -56 − 717 = | 6) | -926 − 451 = |
| 1) | 2 + 229 = 231 | 2) | 83 − 601 = -518 | 3) | 636 + 294 = 930 |
| 4) | 432 + 416 = 848 | 5) | -56 − 717 = -773 | 6) | -926 − 451 = -1377 |