| 1) | -550 + 413 = | 2) | -449 − 979 = | 3) | 781 − 885 = |
| 4) | -377 + 201 = | 5) | -41 − 764 = | 6) | 409 + 958 = |
| 1) | -550 + 413 = -137 | 2) | -449 − 979 = -1428 | 3) | 781 − 885 = -104 |
| 4) | -377 + 201 = -176 | 5) | -41 − 764 = -805 | 6) | 409 + 958 = 1367 |