Khan/khan-exercises — Issue #6646: Subtraction 4 - Im frustrated
Author: KhanBugz
Created: 2011-11-18 17:24:43+00:00
State: open
Labels: chrome, hard, leopard

To hard!!!!!!!!!!!!!!!!!!!!!!!!!!

[subtraction_4.html?seed=139&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=139&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=139&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%222485%5C%22%22%2C26%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22correct-activity%22%2C%22%5C%222475%5C%22%22%2C16%5D%5D)

["2485","2485","2475"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_5_8) AppleWebKit/534.24 (KHTML, like Gecko) Chrome/11.0.696.71 Safari/534.24

MathJax is loaded, ready, queue length: 0