Khan/khan-exercises — Issue #12926: Properties of numbers 2 - Properties of numbers 2
Author: KhanBugz
Created: 2012-02-02 19:58:43+00:00
State: open
Labels: hard, ie8, xp

Reporter: nicole31801@gmail.com

the problem is to hard and my faimly cant help me and i dont get the videos
thanks

[properties_of_numbers_2.html?seed=128&problem=additive-inverse](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_2.html?seed=128&problem=additive-inverse&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_2.html?seed=128&problem=additive-inverse&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%220%2F7894%5C%22%22%2C13%5D%2C%5B%22incorrect-activity%22%2C%22%5C%220%5C%22%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5C%220%2F7894%5C%22%22%2C291%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2213900%2F7894%5C%22%22%2C63%5D%5D)

["0/7894","0","0/7894","13900/7894"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; FBSMTWB; GTB7.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; AskTbORJ/5.14.1.20007)

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