Khan/khan-exercises — Issue #6190: Pre-algebra challenge - don't get it
Author: KhanBugz
Created: 2011-11-13 01:55:17+00:00
State: open
Labels: safari, snowleo

Reporter: nelsona@exira-ehk.k12.ia.us

doesn't explain it enough

[pre-algebra_challenge.html?seed=21&problem=23 (exponents_2)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/pre-algebra_challenge.html?seed=21&problem=23&debug)

["-10","10","-25","25"]

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