| 1) | -627 + 20 = | 2) | -278 − 709 = | 3) | -899 + 126 = |
| 4) | -732 − 812 = | 5) | 544 + 703 = | 6) | -561 − 389 = |
| 1) | -627 + 20 = -607 | 2) | -278 − 709 = -987 | 3) | -899 + 126 = -773 |
| 4) | -732 − 812 = -1544 | 5) | 544 + 703 = 1247 | 6) | -561 − 389 = -950 |