Respostas

A melhor resposta!
2013-06-04T12:35:14-03:00

90+{30+[3x3+4x(20:5)]-10}=

90+{30+[3x3+4x(4)]-10}=

90+{30+[3x3+16]-10}=

90+{30+[9+16]-10}=

90+{30+25-10}=

90+{55-10}=

90+{45}=

90+45 = 135

1 5 1