Răspuns:
b). =(15x(720-609)-600)+585=(15x111-600)+585=1665-600+585=1650
c). =6+5x(103+2x(25+6x59)))=6+5x(103+2x(25+354)=6+5x(103+2x379))=6+5x(103+758))=6+5x861=6+4305=4311
d). =(42+2x(9+6x(600+15-7-10))-420)x100
=(42+2x(9+6x598)-420)x1000
=(42+2x3597)-420)x1000
=(7236-420)x1000
=6816x1000
=6816000
Explicație pas cu pas:
