| 1) | -624 + 841 = | 2) | -121 − 385 = | 3) | 122 + 789 = |
| 4) | -56 + 134 = | 5) | -185 + 511 = | 6) | 81 + 828 = |
| 1) | -624 + 841 = 217 | 2) | -121 − 385 = -506 | 3) | 122 + 789 = 911 |
| 4) | -56 + 134 = 78 | 5) | -185 + 511 = 326 | 6) | 81 + 828 = 909 |