Khan/khan-exercises — Issue #11101: Pre-algebra challenge - khan academy
Author: KhanBugz
Created: 2012-01-13 01:20:38+00:00
State: open
Labels: chrome, vista, wrong-or-unclear

Reporter: ifeg179@yahoo.com

i understand nothing

[pre-algebra_challenge.html?seed=143&problem=metric (units)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=143&problem=metric&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=143&problem=metric&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2224%2C%20700%5C%22%22%2C104%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22100%5C%22%22%2C13%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%5D)

["24, 700","100"]

Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

MathJax is loaded, ready, queue length: 0