OBLICZ: a)26-(30-15):3   36-6*(12-7)   25+10*(71-49)   b) 42:7+(63-29)   (6+14:2)*100   100-14*(6-2)   c) 52-2*(106-93)   84-(6*12-42)   (164-10do potęgi 2):2 do potęgi 3

26-(30-15):3 = 26-15 : 3 = 11 : 3  = 3,666666...   36-6x(12-7)=36-6 x 5= 36-30= 6   25+10x(71-49) = 25+10 x 22 = 25+220 = 245   42 : 7 + ( 63-29) = 42:7 + 34 = 6+34=40   (6+14:2)x100= 13x100= 1300   100-14x ( 6-2)= 100-14x 4 = 100-56 = 44   52-2 x ( 106 -93 ) = 52-2x 13 = 52-26 = 26   84-(6x12-42) = 84- 30 = 54   ( 164 - 10 do potęgi 2 ) : 2 do potęgi 3 = (164-100) : 8 = 64 :8 = 8