Khan/khan-exercises — Issue #6128: Addition 4 - addition 4 not workiing 
Author: KhanBugz
Created: 2011-11-11 19:49:51+00:00
State: open
Labels: ie8, vista

addition 4 is completed but wont show that I did. Its stuck with no problem for my student to complete and it wont let her pass to another course.

[addition_4.html?seed=4&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_4.html?seed=4&problem=0&debug)

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