Khan/khan-exercises — Issue #9431: Subtraction 4 - subtraction 4
Author: KhanBugz
Created: 2011-12-24 02:39:36+00:00
State: open
Labels: chrome, hard, xp

Reporter: chrishamster7

[subtraction_4.html?seed=152&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=152&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=152&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%223291%5C%22%22%2C20%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22hint-activity%22%2C%220%22%2C13%5D%2C%5B%22hint-activity%22%2C%220%22%2C14%5D%2C%5B%22hint-activity%22%2C%220%22%2C14%5D%2C%5B%22hint-activity%22%2C%220%22%2C15%5D%5D)

["3291"]

Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

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