| 1) | -314 + 192 = | 2) | -299 − 815 = | 3) | 899 + 839 = |
| 4) | 62 + 743 = | 5) | 751 − 585 = | 6) | 942 − 73 = |
| 1) | -314 + 192 = -122 | 2) | -299 − 815 = -1114 | 3) | 899 + 839 = 1738 |
| 4) | 62 + 743 = 805 | 5) | 751 − 585 = 166 | 6) | 942 − 73 = 869 |