Khan/khan-exercises — Issue #13497: Addition 3 - bicth
Author: KhanBugz
Created: 2012-02-09 20:29:54+00:00
State: open
Labels: ie8, ie9, other, win7

[addition_3.html?seed=179&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_3.html?seed=179&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_3.html?seed=179&problem=0&debug&activity=%5B%5D)

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