Resposta :
A) 15+14-8 = 29-8 = 21,,
B)50:2 = 25,,
C)25+ [12+13+2] =25+27 =52,,
D)15+ {6+[39+2]} =15+{6+41} =15+47 =63,,
E)45- {8+[1+2+12]+1} =45-{8+15+1} =45-24 =21,,
B)50:2 = 25,,
C)25+ [12+13+2] =25+27 =52,,
D)15+ {6+[39+2]} =15+{6+41} =15+47 =63,,
E)45- {8+[1+2+12]+1} =45-{8+15+1} =45-24 =21,,