| 1) | 88 − 755 = | 2) | -667 − 925 = | 3) | 988 + 394 = |
| 4) | -49 + 438 = | 5) | 110 + 491 = | 6) | -756 + 783 = |
| 1) | 88 − 755 = -667 | 2) | -667 − 925 = -1592 | 3) | 988 + 394 = 1382 |
| 4) | -49 + 438 = 389 | 5) | 110 + 491 = 601 | 6) | -756 + 783 = 27 |