Welcome to Math class

Pre-Algebra book 

Web version
http://www.ck12.org/user:ecmeccgrade7math/book/Grade-7-Mathematics%253A-Minnesota-Standards/r329/

Epub for downloading to iPad or Tablet 
https://drive.google.com/open?id=0B1glCIMUfALtVEdsRUdnZGJhMkU