Khan/khan-exercises — Issue #12038: Order of operations - Order of operations
Author: KhanBugz
Created: 2012-01-24 23:47:56+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

Reporter: ben.paul.eby@gmail.com

The problem asks us to divide 120 by 10 plus 5. There are no parentheses around the addition operation, so the first step, according to the order of operations, should be to divide 120 by 10. The second step should be to add 5. The solution shows the addition happening first, resulting in a different answer. There should either be parentheses around the addition operation in this problem, or the answer should 17, not 8.

[order_of_operations.html?seed=178&problem=5](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/order_of_operations.html?seed=178&problem=5&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/order_of_operations.html?seed=178&problem=5&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2217%5C%22%22%2C27%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22hint-activity%22%2C%220%22%2C13%5D%5D)

["17"]

Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7

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