Khan/khan-exercises — Issue #12617: Addition 1 - not working properly
Author: KhanBugz
Created: 2012-01-31 23:00:23+00:00
State: open
Labels: firefox, leopard, not-showing

no numbers for problems it only says undefined + undefined

[addition_1.html?seed=91&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=91&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=91&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

MathJax is loaded, ready, queue length: 0