Khan/khan-exercises — Issue #8692: Subtraction 4 - 7r56ukj
Author: KhanBugz
Created: 2011-12-15 01:22:54+00:00
State: open
Labels: ie8, ie9, win7, wrong-or-unclear

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[subtraction_4.html?seed=38&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=38&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=38&problem=0&debug&activity=%5B%5D)

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