Khan/khan-exercises — Issue #12159: Adding and subtracting negative numbers - wrong: answer is 8 
Author: KhanBugz
Created: 2012-01-26 05:24:49+00:00
State: open
Labels: chrome, vista, wrong-or-unclear

I answered a question: 9 + negative 1 and the correct answer was 10. I think it was supposed to be 8

[adding_and_subtracting_negative_numbers.html?seed=153&problem=MINUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=153&problem=MINUS&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_and_subtracting_negative_numbers.html?seed=153&problem=MINUS&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%228%5C%22%22%2C4%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%5D)

["8"]

Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7

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