| 1) | -728 + 530 = | 2) | 214 + 547 = | 3) | 921 − 272 = |
| 4) | 411 + 60 = | 5) | -399 + 962 = | 6) | -371 − 630 = |
| 1) | -728 + 530 = -198 | 2) | 214 + 547 = 761 | 3) | 921 − 272 = 649 |
| 4) | 411 + 60 = 471 | 5) | -399 + 962 = 563 | 6) | -371 − 630 = -1001 |