Khan/khan-exercises — Issue #12555: Counting 2 - subtracting and adding nagative numbers
Author: KhanBugz
Created: 2012-01-31 15:45:55+00:00
State: open
Labels: firefox, other, vista

Reporter: ruqaiyahusain011@hotmail.com

i want some more exercise to do for practice

[counting_2.html?seed=163&problem=every-n](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=163&problem=every-n&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/counting_2.html?seed=163&problem=every-n&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 6.0; rv:5.0) Gecko/20100101 Firefox/5.0

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