| 1) | -426 + 150 = | 2) | -35 + 206 = | 3) | -973 − 585 = |
| 4) | 338 + 983 = | 5) | -56 + 546 = | 6) | -870 − 522 = |
| 1) | -426 + 150 = -276 | 2) | -35 + 206 = 171 | 3) | -973 − 585 = -1558 |
| 4) | 338 + 983 = 1321 | 5) | -56 + 546 = 490 | 6) | -870 − 522 = -1392 |