Khan/khan-exercises — Issue #14435: Subtraction 4 - White board is no longer available 
Author: KhanBugz
Created: 2012-02-22 20:38:02+00:00
State: open
Labels: ipad, other, safari

Reporter: michael.a.oreilly@hotmail.com

I was working on some math problems last night and there was a white board available to work out the problems. The board is no longer displayed on the page. Can you help me get it back please?

[subtraction_4.html?seed=76&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=76&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/subtraction_4.html?seed=76&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3

MathJax is loaded, ready, queue length: 0