| 1) | -892 − 65 = | 2) | 21 + 130 = | 3) | 629 + 351 = |
| 4) | -897 + 585 = | 5) | 413 − 803 = | 6) | 424 − 567 = |
| 1) | -892 − 65 = -957 | 2) | 21 + 130 = 151 | 3) | 629 + 351 = 980 |
| 4) | -897 + 585 = -312 | 5) | 413 − 803 = -390 | 6) | 424 − 567 = -143 |