Khan/khan-exercises — Issue #11043: Addition 1 - PROBLEM NOT SHOWING
Author: KhanBugz
Created: 2012-01-12 17:02:40+00:00
State: open
Labels: ie8, not-showing, xp

ADDITION 1 PRACTICE NOT SHOWING PROBLEMS AFTER WE DID FIRST 4. CAN NOT MOVE AHEAD TO NEXT PROBLEM.

[addition_1.html?seed=126&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=126&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=126&problem=0&debug&activity=%5B%5D)

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