Răspuns :
909-909x(102-909:9+0:1)-99x(9x9:9-9)=
=909-909x(102-101+0)-99x0=
=909-909=0
3x(6-6:2)+305:5+(100:5+8x5x0):5=
=3x(6-3)+61+(20+0):5=
=3x3+61+20:5=
=9+61+4=74
=909-909x(102-101+0)-99x0=
=909-909=0
3x(6-6:2)+305:5+(100:5+8x5x0):5=
=3x(6-3)+61+(20+0):5=
=3x3+61+20:5=
=9+61+4=74