| 1) | -147 − 75 = | 2) | -946 − 211 = | 3) | 287 + 350 = |
| 4) | 264 − 977 = | 5) | -915 + 944 = | 6) | 811 + 837 = |
| 1) | -147 − 75 = -222 | 2) | -946 − 211 = -1157 | 3) | 287 + 350 = 637 |
| 4) | 264 − 977 = -713 | 5) | -915 + 944 = 29 | 6) | 811 + 837 = 1648 |