Khan/khan-exercises — Issue #6497: Pre-algebra challenge - pre-algebra challenge
Author: KhanBugz
Created: 2011-11-17 00:45:43+00:00
State: open
Labels: hard, ie8, win7

Reporter: elmer

it hard i dont get it

[pre-algebra_challenge.html?seed=55&problem=5 (order_of_operations)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=55&problem=5&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=55&problem=5&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2256%5C%22%22%2C19%5D%5D)

["56"]

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