| 1) | 896 − 780 = | 2) | -60 + 56 = | 3) | -662 + 828 = |
| 4) | 517 + 250 = | 5) | 953 − 873 = | 6) | 406 + 690 = |
| 1) | 896 − 780 = 116 | 2) | -60 + 56 = -4 | 3) | -662 + 828 = 166 |
| 4) | 517 + 250 = 767 | 5) | 953 − 873 = 80 | 6) | 406 + 690 = 1096 |