| 1) | 838 − 195 = | 2) | 41 + 712 = | 3) | 286 + 473 = |
| 4) | 501 + 375 = | 5) | -80 − 103 = | 6) | -592 − 891 = |
| 1) | 838 − 195 = 643 | 2) | 41 + 712 = 753 | 3) | 286 + 473 = 759 |
| 4) | 501 + 375 = 876 | 5) | -80 − 103 = -183 | 6) | -592 − 891 = -1483 |