Khan/khan-exercises — Issue #9412: Pre-algebra challenge - The question is not correct. 
Author: KhanBugz
Created: 2011-12-23 21:26:48+00:00
State: open
Labels: safari, snowleo, wrong-or-unclear

The fraction question is not correct because there are no parentheses that would be needed for the answer to be correct. "70/5+2" Should be "70/(5+2)" if the answer is to be 10. (which is what it tells me is correct) Otherwise PEMDAS will lead you to another answer. I have come across this issue at least twice.

[pre-algebra_challenge.html?seed=179&problem=12 (order_of_operations)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=179&problem=12&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=179&problem=12&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%2210%5C%22%22%2C21%5D%5D)

["10"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7

MathJax is loaded, ready, queue length: 0