Khan/khan-exercises — Issue #4604: Properties of numbers 1 - stupid Questions
Author: KhanBugz
Created: 2011-10-19 18:26:18+00:00
State: open
Labels: firefox, snowleo

cant do questions that should be right

[properties_of_numbers_1.html?seed=158&problem=associative-show-left](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_1.html?seed=158&problem=associative-show-left&debug)

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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

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