| 1) | -604 + 654 = | 2) | -779 + 181 = | 3) | -74 + 498 = |
| 4) | 680 − 755 = | 5) | 233 + 876 = | 6) | -526 − 353 = |
| 1) | -604 + 654 = 50 | 2) | -779 + 181 = -598 | 3) | -74 + 498 = 424 |
| 4) | 680 − 755 = -75 | 5) | 233 + 876 = 1109 | 6) | -526 − 353 = -879 |