Khan/khan-exercises — Issue #9861: Subtraction 1 - Subtraction 1 missing problem
Author: KhanBugz
Created: 2011-12-30 02:34:19+00:00
State: open
Labels: firefox, not-showing, xp

I can't see the problem.

[subtraction_1.html?seed=190&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_1.html?seed=190&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_1.html?seed=190&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%222%5C%22%22%2C9%5D%2C%5B%22incorrect-activity%22%2C%22%5C%222%5C%22%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22correct-activity%22%2C%22%5C%220%5C%22%22%2C7%5D%5D)

["2","2","0"]

Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20100101 Firefox/8.0

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