| 1) | 681 − 865 = | 2) | 232 + 737 = | 3) | 134 + 950 = |
| 4) | -795 + 688 = | 5) | 614 − 317 = | 6) | -247 − 435 = |
| 1) | 681 − 865 = -184 | 2) | 232 + 737 = 969 | 3) | 134 + 950 = 1084 |
| 4) | -795 + 688 = -107 | 5) | 614 − 317 = 297 | 6) | -247 − 435 = -682 |