| 1) | -129 − 208 = | 2) | 307 + 681 = | 3) | 806 + 206 = |
| 4) | -271 + 625 = | 5) | -100 + 106 = | 6) | -995 + 839 = |
| 1) | -129 − 208 = -337 | 2) | 307 + 681 = 988 | 3) | 806 + 206 = 1012 |
| 4) | -271 + 625 = 354 | 5) | -100 + 106 = 6 | 6) | -995 + 839 = -156 |