Khan/khan-exercises — Issue #8431: Adding and subtracting negative numbers - problem
Author: KhanBugz
Created: 2011-12-12 18:04:23+00:00
State: open
Labels: ie8, wrong-or-unclear, xp

Reporter: FJ179129@student.springisd.org

i have to enter it twice

[adding_and_subtracting_negative_numbers.html?seed=1&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=1&problem=PLUS&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=1&problem=PLUS&debug&activity=%5B%5D)

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