Khan/khan-exercises — Issue #5835: Addition 4 - 00000
Author: KhanBugz
Created: 2011-11-09 01:56:41+00:00
State: open
Labels: firefox, vista

Reporter: 0000000

I do one of my problems wrong and it eares all my work

[addition_4.html?seed=188&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_4.html?seed=188&problem=0&debug)

["15509"]

Mozilla/5.0 (Windows NT 6.0; rv:7.0.1) Gecko/20100101 Firefox/7.0.1

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