| 1) | 783 − 354 = | 2) | 219 − 634 = | 3) | -828 + 994 = |
| 4) | 569 + 190 = | 5) | 84 − 151 = | 6) | -56 + 933 = |
| 1) | 783 − 354 = 429 | 2) | 219 − 634 = -415 | 3) | -828 + 994 = 166 |
| 4) | 569 + 190 = 759 | 5) | 84 − 151 = -67 | 6) | -56 + 933 = 877 |