This series of books are great....simply written, easy to understand, and chock full of humor to lighten your mood on a serious subject. I highly recommend!
Kiss My Math:
I bought this for my 12 yr old grandson based on an interview with the author.
He said that it made math more fun and understandable.
Great book:
This book explains things in an easy to understand way. My daughters math tutor loved it when she saw it.
math book:
a good book, explains introductory math in an easy to understand way that children understand. A little rambling on at times but that is easy to ignor.