Khan/khan-exercises — Issue #7438: Number line 3 - http://www.khanacademy.org/exercise/number_line_3
Author: KhanBugz
Created: 2011-12-01 13:26:28+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

center is -3.. and the dot is 2 tick more to the left. ei. -3 + -2 = -5..

but it will only accept -6 is answer.

i believe that is wrong

[number_line_3.html?seed=122&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line_3.html?seed=122&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line_3.html?seed=122&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-5%5C%22%22%2C6%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C13%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-5%5C%22%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C11%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-4%5C%22%22%2C24%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-5%5C%22%22%2C12%5D%2C%5B%22correct-activity%22%2C%22%5C%22-6%5C%22%22%2C3%5D%5D)

["-5","-1","-5","-4","-5","-6"]

Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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