| 1) | -683 − 748 = | 2) | -810 − 263 = | 3) | -428 + 187 = |
| 4) | 50 + 708 = | 5) | 746 + 397 = | 6) | 932 − 999 = |
| 1) | -683 − 748 = -1431 | 2) | -810 − 263 = -1073 | 3) | -428 + 187 = -241 |
| 4) | 50 + 708 = 758 | 5) | 746 + 397 = 1143 | 6) | 932 − 999 = -67 |