Khan/khan-exercises — Issue #14775: Addition 1 - addition is hard ):
Author: KhanBugz
Created: 2012-02-27 20:45:41+00:00
State: open
Labels: ie8, other, xp

Reporter: alexanicolakakos

ima to adumb for

[addition_1.html?seed=3&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=3&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=3&problem=0&debug&activity=%5B%5D)

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