260
Пошаговое объяснение:
=340:34+250-43+43=10+250=260
(340-339*0)/34+250-1*(100-57)+43=260
1. 339*0 = 0
2. 340-0 = 340
3. 100-57 = 43
4. 340/34 = 10
5. 10+250 = 260
6. 1*43 = 43
7. 260-43 = 217
8. 217+43 = 260
