| 1) | 666 − 927 = | 2) | -930 − 599 = | 3) | -98 + 349 = |
| 4) | -876 − 234 = | 5) | -685 − 928 = | 6) | 425 − 573 = |
| 1) | 666 − 927 = -261 | 2) | -930 − 599 = -1529 | 3) | -98 + 349 = 251 |
| 4) | -876 − 234 = -1110 | 5) | -685 − 928 = -1613 | 6) | 425 − 573 = -148 |