Khan/khan-exercises — Issue #10067: Addition 2 - cant practice
Author: KhanBugz
Created: 2012-01-02 23:20:05+00:00
State: open
Labels: not-showing, safari

[addition_2.html?seed=23&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_2.html?seed=23&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_2.html?seed=23&problem=0&debug&activity=undefined)

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