| 1) | -955 + 237 = | 2) | -427 + 365 = | 3) | -618 + 682 = |
| 4) | -268 − 142 = | 5) | 544 − 21 = | 6) | -985 + 312 = |
| 1) | -955 + 237 = -718 | 2) | -427 + 365 = -62 | 3) | -618 + 682 = 64 |
| 4) | -268 − 142 = -410 | 5) | 544 − 21 = 523 | 6) | -985 + 312 = -673 |