| 1) | 725 + 102 = | 2) | 359 − 261 = | 3) | 7 − 568 = |
| 4) | 971 + 423 = | 5) | -826 − 530 = | 6) | 602 + 331 = |
| 1) | 725 + 102 = 827 | 2) | 359 − 261 = 98 | 3) | 7 − 568 = -561 |
| 4) | 971 + 423 = 1394 | 5) | -826 − 530 = -1356 | 6) | 602 + 331 = 933 |