Khan/khan-exercises — Issue #5611: Adding negative numbers - disappeared?? 
Author: KhanBugz
Created: 2011-11-04 23:15:57+00:00
State: open
Labels: chrome, snowleo

my questions all disappeared??

[adding_negative_numbers.html?seed=109&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_negative_numbers.html?seed=109&problem=PLUS&debug)

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Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_7; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.231 Safari/534.10

MathJax is loaded, NOT ready, queue length: 10