Khan/khan-exercises — Issue #12099: Subtraction 4 - subtraction
Author: KhanBugz
Created: 2012-01-25 18:28:31+00:00
State: open
Labels: hard, safari, snowleo

stupid problems i hate and think you schould het rid of this website

[subtraction_4.html?seed=106&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=106&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=106&problem=0&debug&activity=%5B%5D)

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