Question

раскройте скобки  
          8.7+(13.7 - 15.2) - (24.6 - 20.1

Answer 1

8.7+(13.7 - 15.2) - (24.6 - 20.1)

1. 13.7 - 15.2 = -2.5
2. 24.6 - 20.1 = 4.5
3. 8.7 + (-2.5) = 6.2
4. 6.2 - 4.5 = 1.7
Ответ 1.7