Respostas

2013-11-05T14:49:13-02:00
3(5+2)-4(5+3)
15+6-20-12
21-20-12
21-32
-11
  • lom
  • Principiante
2013-11-05T14:50:51-02:00
3(5+2)-4(5+3)
3(7)-4(8)
21-32= -11