Respostas

2013-12-05T00:43:09-02:00
2013-12-05T00:44:16-02:00
(5 . 9 - 3) - 9 + 1 =
(45 - 3) - 9 + 1 = 
42 - 9 + 1 = 
33 + 1 =
34