If your child is struggling with math, then this book is for you; the short book covers the topic and also contains 30 practice problems to work with.

This subject comes from the book "Second Grade Math (For Home School or Extra Practice)"; it more thoroughly covers more fifth grade topics to help your child get a better understanding of fourth grade math. If you purchased that book, or plan to purchase that book, do not purchase this, as the problems are the same.