Khan/khan-exercises — Issue #8798: Pre-algebra challenge - im a noob
Author: KhanBugz
Created: 2011-12-16 05:38:30+00:00
State: open
Labels: firefox, hard, vista

what is this stuff

[pre-algebra_challenge.html?seed=66&problem=english (units)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=66&problem=english&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=66&problem=english&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 6.0; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0

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