1) | 14 | + | 3 | - | 2 | = | 14 + 3 - 2 | = | 15 | ; |
47 | 47 | 47 | 47 | 47 |
2) | 19 | - ( | 14 | + | 3 | ) = | 19 - (14 + 3) | = | 2 | ; |
49 | 49 | 49 | 49 | 49 |
3) | 19 | - | 2 | + | 14 | = | 19 - 2 + 14 | = | 31 | ; |
71 | 71 | 71 | 71 | 71 |
4) | 31 | - ( | 14 | - | 7 | ) = | 31 - (14 - 7) | = | 24 | . |
33 | 33 | 33 | 33 | 33 |