| 1) | 115 − 921 = | 2) | -763 + 107 = | 3) | 62 − 123 = |
| 4) | 625 + 279 = | 5) | -112 − 352 = | 6) | -45 + 741 = |
| 1) | 115 − 921 = -806 | 2) | -763 + 107 = -656 | 3) | 62 − 123 = -61 |
| 4) | 625 + 279 = 904 | 5) | -112 − 352 = -464 | 6) | -45 + 741 = 696 |