Khan/khan-exercises — pull request #93411 by petercollingridge (2013-10-21 10:51:42+00:00)
Title: Add positive numbers to Ordering Negative Numbers exercise

Add positive numbers, but ensure there is at least one negative number. Ensure that the question is not in order to start with.

For Trello card: https://trello.com/c/0hNxBIXM/412-ordering-negative-numbers