| 1) | -777 − 224 = | 2) | -202 − 974 = | 3) | 369 + 767 = |
| 4) | 657 + 105 = | 5) | 559 + 26 = | 6) | 409 + 381 = |
| 1) | -777 − 224 = -1001 | 2) | -202 − 974 = -1176 | 3) | 369 + 767 = 1136 |
| 4) | 657 + 105 = 762 | 5) | 559 + 26 = 585 | 6) | 409 + 381 = 790 |