| 1) | -26 − 483 = | 2) | -691 − 598 = | 3) | -160 + 280 = |
| 4) | 107 − 333 = | 5) | -555 − 320 = | 6) | -606 + 488 = |
| 1) | -26 − 483 = -509 | 2) | -691 − 598 = -1289 | 3) | -160 + 280 = 120 |
| 4) | 107 − 333 = -226 | 5) | -555 − 320 = -875 | 6) | -606 + 488 = -118 |