Khan/khan-exercises — pull request #11746 by GalaxiaGuy (2012-01-20 23:25:24+00:00)
Title: Understanding Decimals - Changed selection method to *hopefully* be more intuitive

After reading issue #11728 (a mistake I made myself) I tried reworking the interface to be more intuitive.

I think it's better (except possibly when deselecting _all_ items - I'll see if you can figure it out) but any suggestions are welcome.