| 1) | -344 + 159 = | 2) | -419 − 286 = | 3) | 957 − 747 = |
| 4) | -778 + 10 = | 5) | 804 + 486 = | 6) | -266 + 956 = |
| 1) | -344 + 159 = -185 | 2) | -419 − 286 = -705 | 3) | 957 − 747 = 210 |
| 4) | -778 + 10 = -768 | 5) | 804 + 486 = 1290 | 6) | -266 + 956 = 690 |