| 1) | 928 − 516 = | 2) | -82 + 892 = | 3) | 953 − 115 = |
| 4) | -540 − 971 = | 5) | 148 + 934 = | 6) | 437 + 169 = |
| 1) | 928 − 516 = 412 | 2) | -82 + 892 = 810 | 3) | 953 − 115 = 838 |
| 4) | -540 − 971 = -1511 | 5) | 148 + 934 = 1082 | 6) | 437 + 169 = 606 |