| 1) | -852 − 861 = | 2) | 459 − 816 = | 3) | -161 + 674 = |
| 4) | -922 − 876 = | 5) | 999 + 314 = | 6) | 253 + 966 = |
| 1) | -852 − 861 = -1713 | 2) | 459 − 816 = -357 | 3) | -161 + 674 = 513 |
| 4) | -922 − 876 = -1798 | 5) | 999 + 314 = 1313 | 6) | 253 + 966 = 1219 |