Khan/khan-exercises — Issue #4842: Addition 1 - Basic Addition Problems
Author: KhanBugz
Created: 2011-10-23 16:15:37+00:00
State: open
Labels: ie8, ie9, vista

the question 9+10= __ says that 19 is an incorrect answer.

[addition_1.html?seed=180&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=180&problem=0&debug)

["19"]

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