Khan/khan-exercises — Issue #8541: Pre-algebra challenge - Pre- algerbra challenge
Author: KhanBugz
Created: 2011-12-13 17:56:17+00:00
State: open
Labels: ie8, not-showing, xp

[pre-algebra_challenge.html?seed=6&problem=16 (exponents_3)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=6&problem=16&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=6&problem=16&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22hint-activity%22%2C%220%22%2C12%5D%2C%5B%22hint-activity%22%2C%220%22%2C12%5D%5D)

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