Khan/khan-exercises — Issue #13329: Subtraction 4 - the number doesnt change!!!!!!!!!!!!!!!!!
Author: KhanBugz
Created: 2012-02-08 01:12:54+00:00
State: open
Labels: ie8, other, xp

[subtraction_4.html?seed=159&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=159&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=159&problem=0&debug&activity=%5B%5D)

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