Khan/khan-exercises — Issue #15141: Adding and subtracting negative numbers - Vidoes not playing
Author: KhanBugz
Created: 2012-03-01 16:55:10+00:00
State: open
Labels: firefox, other, xp

Reporter: rhan5@yahoo.com

Multiple videos are not playing. Some we have watched before, so I assume the problem is with the website and not our computer. Thank you.

[adding_and_subtracting_negative_numbers.html?seed=16&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=16&problem=PLUS&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=16&problem=PLUS&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%226%5C%22%22%2C31%5D%5D)

["6","-6"]

Mozilla/5.0 (Windows NT 5.1; rv:10.0.2) Gecko/20100101 Firefox/10.0.2

MathJax is loaded, ready, queue length: 0