| 1) | -533 + 597 = | 2) | 551 − 148 = | 3) | -478 + 61 = |
| 4) | 729 − 304 = | 5) | -891 + 252 = | 6) | 904 − 96 = |
| 1) | -533 + 597 = 64 | 2) | 551 − 148 = 403 | 3) | -478 + 61 = -417 |
| 4) | 729 − 304 = 425 | 5) | -891 + 252 = -639 | 6) | 904 − 96 = 808 |