Question

Calculeaza a•b-c, știind ca:
A=50+9:9-45
B=3•(300-55•5)•2+3-(14:7-5•0)
C=35•2+45•3

Answer 1

a=50+9:9-45=50+1-45=51-45=6
a=6
b=3x(300-55x5)+3-(14:7-5x0)=6x(300-275)+3-(2-0)=6x25+3-2=150+1=151
c=35x2+45x3=70+135=205
axb-c=6x151-205=906-205=701
axb-c=701

Answer 2

A= 50 + 9:9 - 45
A= 50 + 1 - 45
A= 6

B=3*(300-55*5)*2+3-(14:7-5*0)
B= 3*(300-275)*2+3-2
B= 3*25*2+3-2
B=150+3-2
B=151

C= 35*2+45*3
C=70+135
C= 205

a*b-c = 6*151 - 205 = 906-205=701