Khan/khan-exercises — Issue #6934: Properties of numbers 2 - Wrong Answer
Author: KhanBugz
Created: 2011-11-22 22:30:30+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

It is saying the right answer is wrong

[properties_of_numbers_2.html?seed=180&problem=addition-identity](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_2.html?seed=180&problem=addition-identity&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/properties_of_numbers_2.html?seed=180&problem=addition-identity&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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