Khan/khan-exercises — Issue #6052: Evaluating expressions 1 - evaluating expressions 1 practice problems
Author: KhanBugz
Created: 2011-11-11 02:29:50+00:00
State: open
Labels: ie8, win7

Reporter: EshesKhayil@comcast.net

I do not understand how to do these problems as they are not like the videos and no answer seems to be acceptable. It seems the problem equations are incomplete. What is NAN?

[evaluating_expressions_1.html?seed=39&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/evaluating_expressions_1.html?seed=39&problem=0&debug)

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