| 1) | -647 − 130 = | 2) | -200 − 411 = | 3) | -939 + 693 = |
| 4) | -934 − 788 = | 5) | 297 − 387 = | 6) | -854 + 578 = |
| 1) | -647 − 130 = -777 | 2) | -200 − 411 = -611 | 3) | -939 + 693 = -246 |
| 4) | -934 − 788 = -1722 | 5) | 297 − 387 = -90 | 6) | -854 + 578 = -276 |