| 1) | 563 − 656 = | 2) | -1 + 366 = | 3) | 651 + 572 = |
| 4) | 691 + 136 = | 5) | 480 − 286 = | 6) | -482 − 570 = |
| 1) | 563 − 656 = -93 | 2) | -1 + 366 = 365 | 3) | 651 + 572 = 1223 |
| 4) | 691 + 136 = 827 | 5) | 480 − 286 = 194 | 6) | -482 − 570 = -1052 |