Non-textbook Math book recommendation to read to my kids I'm looking for a book to read to my kids.
NOT a kids book, but not too mature for a kid. My youngest kid that reads with me is 6 and the eldest is 10.
I'm looking for a book that is good literature, and is hard to put down. 
Also maybe a book that makes the subject in school more interesting. Not just tedious memorization, but presenting it in a way that makes the child excited about what he/she is learning. And not a book that teaches the subject, (math etc....) but a book that teaches how it got started or why it's important. 
Are there any books like these you that you have read that made you excited about math? If so please tell me.

Definitely
https://en.wikipedia.org/wiki/The_Number_Devil
by Hans Magnus Enzensberger
In Italy the title is "Il Mago dei Numeri" (The Numbers Wizard) to avoid offense to Vatican Holy See Pope, I guess :)
The original title is 

Der Zahlenteufel. Ein Kopfkissenbuch für alle, die Angst vor der
  Mathematik haben

More or less 
The number devil. A pillow book for those who are afraid of mathematics
