a=15-18:(9x3:3+0)+30:(1+5)
=15-18:(27:9+0)+30:6
=15-18:3+5
=15-6+3
=9+3
=11
b=25+[14x18:2-5x(20-12)]
=25+(252:2-5x8)
=25+(126-40)
=25+86
=111
11+111=122
111-11=100
11x111=1221
Sper ca te am ajutat. Coroana?
