Calculeaza,respectand regulile:
126-[(63 x 2 : 6 +109) x (75 : 5 +21 : 3 )] : 10=


Răspuns :

126-[(126:6+109)×(15+7)]:10=
126-(21+109)×(22):10
126-(130)×22:10. =
130-126=
4×22:10
88:10
8.8