Khan/khan-exercises — Issue #9415: Number line 3 - Answer not accepted
Author: KhanBugz
Created: 2011-12-23 21:41:24+00:00
State: open
Labels: firefox, other, snowleo

I give -1 as the answer, but the system reports that this is not an integer.

[number_line_3.html?seed=145&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line_3.html?seed=145&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/number_line_3.html?seed=145&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C9%5D%2C%5B%22hint-activity%22%2C%220%22%2C13%5D%2C%5B%22hint-activity%22%2C%220%22%2C15%5D%2C%5B%22hint-activity%22%2C%220%22%2C16%5D%2C%5B%22hint-activity%22%2C%220%22%2C18%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C29%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C4%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22-1%5C%22%22%2C1%5D%5D)

["-1","-1","-1","-1","-1"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0.1) Gecko/20100101 Firefox/8.0.1

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