Khan/khan-exercises — Issue #13223: Adding negative numbers - too many problems!
Author: KhanBugz
Created: 2012-02-07 02:31:35+00:00
State: open
Labels: ie8, other, vista

my friend and i did the same lesson last night and we finished much faster because there were less problems.

[adding_negative_numbers.html?seed=8&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_negative_numbers.html?seed=8&problem=PLUS&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_negative_numbers.html?seed=8&problem=PLUS&debug&activity=%5B%5D)

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