Khan/khan-exercises — Issue #13846: Properties of numbers 1 - ansewer is wrong
Author: KhanBugz
Created: 2012-02-15 00:03:10+00:00
State: open
Labels: ie8, win7, wrong-or-unclear

I did all the ways and asked my parentes.

[properties_of_numbers_1.html?seed=5&problem=associative-show-left](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_1.html?seed=5&problem=associative-show-left&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_1.html?seed=5&problem=associative-show-left&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22280%5C%22%22%2C152%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22280%5C%22%22%2C2%5D%5D)

["280","280"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; 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; BRI/1)

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