| 1) | -603 + 647 = | 2) | -434 + 603 = | 3) | -56 − 824 = |
| 4) | -811 − 764 = | 5) | 677 + 93 = | 6) | -394 + 319 = |
| 1) | -603 + 647 = 44 | 2) | -434 + 603 = 169 | 3) | -56 − 824 = -880 |
| 4) | -811 − 764 = -1575 | 5) | 677 + 93 = 770 | 6) | -394 + 319 = -75 |