Khan/khan-exercises — Issue #10850: Subtraction 3 - hard or not?
Author: KhanBugz
Created: 2012-01-10 15:38:11+00:00
State: open
Labels: hard, ie8, xp

[subtraction_3.html?seed=93&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_3.html?seed=93&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_3.html?seed=93&problem=0&debug&activity=%5B%5D)

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