(90 х 50):100+(5х60+0х1):10-10[(9х9:27+2)=
4500:100+300:10-10*5=45+30-50=75-50=25
4500:100 + (300 + 0 ):10 - 10 (81:27+2) = 45 + 30 - 10*5= 75 - 50 = 25 Ответ:25.