| 1) | 130 − 81 = | 2) | -387 − 782 = | 3) | -657 + 429 = |
| 4) | -672 + 166 = | 5) | -843 − 128 = | 6) | -95 − 429 = |
| 1) | 130 − 81 = 49 | 2) | -387 − 782 = -1169 | 3) | -657 + 429 = -228 |
| 4) | -672 + 166 = -506 | 5) | -843 − 128 = -971 | 6) | -95 − 429 = -524 |