Khan/khan-exercises — Issue #5057: Adding negative numbers - adding negetive numbers
Author: KhanBugz
Created: 2011-10-27 00:35:16+00:00
State: open
Labels: ie8, ie9, win7

when i type in the right answer, it won't work

[adding_negative_numbers.html?seed=171&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_negative_numbers.html?seed=171&problem=PLUS&debug)

["-3","3","-3"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; MDDC)

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