| 1) | 313 − 88 = | 2) | 51 − 884 = | 3) | -951 + 501 = |
| 4) | 736 + 130 = | 5) | -522 − 689 = | 6) | -502 − 560 = |
| 1) | 313 − 88 = 225 | 2) | 51 − 884 = -833 | 3) | -951 + 501 = -450 |
| 4) | 736 + 130 = 866 | 5) | -522 − 689 = -1211 | 6) | -502 − 560 = -1062 |