| 1) | 842 − 769 = | 2) | -908 − 563 = | 3) | -3 − 923 = |
| 4) | 218 − 803 = | 5) | 927 + 406 = | 6) | -909 + 546 = |
| 1) | 842 − 769 = 73 | 2) | -908 − 563 = -1471 | 3) | -3 − 923 = -926 |
| 4) | 218 − 803 = -585 | 5) | 927 + 406 = 1333 | 6) | -909 + 546 = -363 |