Khan/khan-exercises — Issue #13826: Addition 3 - hardness
Author: KhanBugz
Created: 2012-02-14 19:14:01+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

it was hard and the writing tool would not come out

[addition_3.html?seed=190&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_3.html?seed=190&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_3.html?seed=190&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.77 Safari/535.7

MathJax is loaded, ready, queue length: 0