| 1) | -221 + 934 = | 2) | -773 + 151 = | 3) | -215 − 471 = |
| 4) | -773 + 343 = | 5) | -691 − 610 = | 6) | 834 + 765 = |
| 1) | -221 + 934 = 713 | 2) | -773 + 151 = -622 | 3) | -215 − 471 = -686 |
| 4) | -773 + 343 = -430 | 5) | -691 − 610 = -1301 | 6) | 834 + 765 = 1599 |