Khan/khan-exercises — Issue #13521: Adding and subtracting negative numbers - Adding and subtracting negative numbers
Author: KhanBugz
Created: 2012-02-10 00:46:57+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

Reporter: cheny@ismanila.org

Can not type the right answer

[adding_and_subtracting_negative_numbers.html?seed=40&problem=MINUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=40&problem=MINUS&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=40&problem=MINUS&debug&activity=%5B%5D)

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Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

MathJax is loaded, ready, queue length: 0