Khan/khan-exercises — Issue #6360: Addition 1 - no questions
Author: KhanBugz
Created: 2011-11-15 08:20:58+00:00
State: open
Labels: ie8, not-showing, xp

no questions are coming up.

[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/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.2; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; msn OptimizedIE8;ENAU)

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