| 1) | -776 + 46 = | 2) | -157 − 448 = | 3) | -407 − 924 = |
| 4) | -617 − 631 = | 5) | 140 − 22 = | 6) | 939 + 831 = |
| 1) | -776 + 46 = -730 | 2) | -157 − 448 = -605 | 3) | -407 − 924 = -1331 |
| 4) | -617 − 631 = -1248 | 5) | 140 − 22 = 118 | 6) | 939 + 831 = 1770 |