| 1) | -656 − 250 = | 2) | -187 + 290 = | 3) | -663 + 759 = |
| 4) | -141 + 218 = | 5) | 248 + 592 = | 6) | 780 + 414 = |
| 1) | -656 − 250 = -906 | 2) | -187 + 290 = 103 | 3) | -663 + 759 = 96 |
| 4) | -141 + 218 = 77 | 5) | 248 + 592 = 840 | 6) | 780 + 414 = 1194 |