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a) [357:7+344:8):2]x31+17-(500:4+7)=1342

b) (28x5+30):10+729:9-[25x(39-19x2)]=133

c) (57x2:3)+32x50-[39x(4+2):2]+8=1529

d) [(248:8-21x1):10]+(500:50+800:20)=51



Răspuns :

B) (140&30) : 10& 81- (25*(39-38)----133 170:10&81-25*1------133 17&56----133333 73---13333333 & am scris ca plus