| 1) | -726 − 845 = | 2) | 115 − 52 = | 3) | -320 + 836 = |
| 4) | -519 + 437 = | 5) | 643 − 39 = | 6) | 788 − 869 = |
| 1) | -726 − 845 = -1571 | 2) | 115 − 52 = 63 | 3) | -320 + 836 = 516 |
| 4) | -519 + 437 = -82 | 5) | 643 − 39 = 604 | 6) | 788 − 869 = -81 |