Khan/khan-exercises — Issue #13200: Addition 1 - 5
Author: KhanBugz
Created: 2012-02-06 22:15:54+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

Reporter: marcelogloria@uol.com.br

[addition_1.html?seed=23&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=23&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=23&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows; U; Windows NT 6.1; pt-BR; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3

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