Khan/khan-exercises — pull request #55970 by petercollingridge (2013-07-25 16:11:01+00:00)
Title: Comparing decimals

For Trello cards:
https://trello.com/c/QLphd06d/129-comparing-decimals-1
https://trello.com/c/kFTTP23f/149-comparing-decimals-2