Khan/khan-exercises — Issue #4278: Adding and subtracting negative numbers - Negative number practice problems 
Author: KhanBugz
Created: 2011-10-13 11:30:55+00:00
State: open
Labels: ipad, safari

the answer is being prepopulated with the number9

[adding_and_subtracting_negative_numbers.html?seed=54&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=54&problem=PLUS)

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Mozilla/5.0 (iPad; U; CPU OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5

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