| 1) | -397 + 495 = | 2) | -813 − 601 = | 3) | -651 − 230 = |
| 4) | -122 − 974 = | 5) | -33 − 868 = | 6) | -331 − 167 = |
| 1) | -397 + 495 = 98 | 2) | -813 − 601 = -1414 | 3) | -651 − 230 = -881 |
| 4) | -122 − 974 = -1096 | 5) | -33 − 868 = -901 | 6) | -331 − 167 = -498 |