Khan/khan-exercises — Issue #11535: Place value - assignment completion 
Author: KhanBugz
Created: 2012-01-18 18:02:28+00:00
State: open
Labels: firefox, lion, other

i've two kids using the same computer. although they are logged in separately, ones completed exercises are credited to both. any ideas?

[place_value.html?seed=64&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/place_value.html?seed=64&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/place_value.html?seed=64&problem=0&debug&activity=%5B%5D)

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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

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