| 1) | -129 − 956 = | 2) | 611 + 523 = | 3) | 875 − 708 = |
| 4) | 760 − 304 = | 5) | 962 + 844 = | 6) | -400 + 231 = |
| 1) | -129 − 956 = -1085 | 2) | 611 + 523 = 1134 | 3) | 875 − 708 = 167 |
| 4) | 760 − 304 = 456 | 5) | 962 + 844 = 1806 | 6) | -400 + 231 = -169 |