| 1) | 290 − 906 = | 2) | -2 + 328 = | 3) | -675 + 750 = |
| 4) | 551 − 92 = | 5) | 48 − 303 = | 6) | -49 − 750 = |
| 1) | 290 − 906 = -616 | 2) | -2 + 328 = 326 | 3) | -675 + 750 = 75 |
| 4) | 551 − 92 = 459 | 5) | 48 − 303 = -255 | 6) | -49 − 750 = -799 |