Khan/khan-exercises — Issue #4602: Addition 1 - scratch pad makes only straight lines
Author: KhanBugz
Created: 2011-10-19 18:17:01+00:00
State: open
Labels: leopard, safari

[addition_1.html?seed=23&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=23&problem=0&debug)

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