| 1) | -160 − 326 = | 2) | -290 + 452 = | 3) | -133 + 906 = |
| 4) | 722 + 943 = | 5) | -162 + 644 = | 6) | -43 + 389 = |
| 1) | -160 − 326 = -486 | 2) | -290 + 452 = 162 | 3) | -133 + 906 = 773 |
| 4) | 722 + 943 = 1665 | 5) | -162 + 644 = 482 | 6) | -43 + 389 = 346 |