Khan/khan-exercises — Issue #7846: Adding negative numbers - wrong answers?
Author: KhanBugz
Created: 2011-12-05 21:50:16+00:00
State: open
Labels: hard, ie8, ie9, win7

gives me one problem and says one thing. then gives me the same thing and gives me another answer

[adding_negative_numbers.html?seed=126&problem=PLUS](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_negative_numbers.html?seed=126&problem=PLUS&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/adding_negative_numbers.html?seed=126&problem=PLUS&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-9%5C%22%22%2C6%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-8%5C%22%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%5D)

["-9","-8"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; MS-RTC EA 2)

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