| 1) | 612 + 294 = | 2) | -817 + 480 = | 3) | 532 − 961 = |
| 4) | -709 + 16 = | 5) | 514 + 541 = | 6) | 49 − 222 = |
| 1) | 612 + 294 = 906 | 2) | -817 + 480 = -337 | 3) | 532 − 961 = -429 |
| 4) | -709 + 16 = -693 | 5) | 514 + 541 = 1055 | 6) | 49 − 222 = -173 |