In regards to the last question "Are the Math books ebooks or shipped"......
They are digital ebooks. They reason for this is:
1.They are 90% cheaper than a hard copy book.
2. All the Math books on this site are filled with charts, tools, and practice sheets. You can print as many or as few as you need.
Lastly, I will add a snapshot of 5 Steps to Multiplication for a sneak peek into the book.In addition all fact specific worksheets are included with this book.