| 1) | 731 + 374 = | 2) | 862 + 375 = | 3) | -168 + 165 = |
| 4) | -894 + 804 = | 5) | -920 − 375 = | 6) | -214 − 479 = |
| 1) | 731 + 374 = 1105 | 2) | 862 + 375 = 1237 | 3) | -168 + 165 = -3 |
| 4) | -894 + 804 = -90 | 5) | -920 − 375 = -1295 | 6) | -214 − 479 = -693 |