Am nevoie neapărat la H de la ex.2

Răspuns:
136-[(63×2÷6+109)×(75÷25+21÷3)]÷10=
136-[(126÷6+109)×(3+7)]÷10=
136-[(21+109)×10]÷10=
136-(130×10)÷10=
136-1300÷10=
136-130=
=6