published on: 2012-01-20 23:11:57
tungos.tumblr.com/post/16175649548/
tungos.tumblr.com/post/16179968896/
tungos.tumblr.com/post/16194259701/
Raiz cuadrada
tungos.tumblr.com/post/16203201448/
tungos.tumblr.com/post/16210309012/