Khan/khan-exercises — Issue #12455: Addition 4 - cannot access scratch pad
Author: KhanBugz
Created: 2012-01-30 17:14:59+00:00
State: open
Labels: firefox, other, xp

[addition_4.html?seed=144&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_4.html?seed=144&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_4.html?seed=144&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18

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