| 1) | -353 − 722 = | 2) | -55 + 773 = | 3) | -939 + 928 = |
| 4) | 372 + 667 = | 5) | -956 + 785 = | 6) | 192 + 881 = |
| 1) | -353 − 722 = -1075 | 2) | -55 + 773 = 718 | 3) | -939 + 928 = -11 |
| 4) | 372 + 667 = 1039 | 5) | -956 + 785 = -171 | 6) | 192 + 881 = 1073 |