1) | 17 | – | 9 | + | 4 | = | 12 | ; |
25 | 25 | 25 | 25 |
2) | 18 | – ( | 8 | + | 7 | ) = | 3 | ; |
19 | 19 | 19 | 19 |
3) | 7 | – | 1 | – | 2 | = | 4 | ; |
11 | 11 | 11 | 11 |
4) | 5 | – ( | 7 | – | 2 | ) = 0. |
12 | 12 | 12 |
Завдання №1223
Знайди значення виразу:
1) | 17 | – | 9 | + | 4 | = | 12 | ; |
25 | 25 | 25 | 25 |
2) | 18 | – ( | 8 | + | 7 | ) = | 3 | ; |
19 | 19 | 19 | 19 |
3) | 7 | – | 1 | – | 2 | = | 4 | ; |
11 | 11 | 11 | 11 |
4) | 5 | – ( | 7 | – | 2 | ) = 0. |
12 | 12 | 12 |