Khan/khan-exercises — Issue #5211: Addition 1 - 4+9=13
Author: KhanBugz
Created: 2011-10-30 03:32:53+00:00
State: open
Labels: ie8, ie9, win7

Reporter: manzeelbabu@yahoo.co.uk

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

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Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C)

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