Khan/khan-exercises — Issue #5127: Subtraction 2 - ahh!
Author: KhanBugz
Created: 2011-10-28 14:05:52+00:00
State: open
Labels: leopard, safari

well i get one problem wrong and then it lowers my score so i get really angry and dont want to do it anymore.

[subtraction_2.html?seed=23&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_2.html?seed=23&problem=0&debug)

["53","52"]

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