| 1) | 499 − 308 = | 2) | -563 + 696 = | 3) | 580 + 387 = |
| 4) | -759 + 706 = | 5) | -709 − 589 = | 6) | -327 + 571 = |
| 1) | 499 − 308 = 191 | 2) | -563 + 696 = 133 | 3) | 580 + 387 = 967 |
| 4) | -759 + 706 = -53 | 5) | -709 − 589 = -1298 | 6) | -327 + 571 = 244 |