This book, with 200 math problems, covers the following topics: Addition and Subtraction, Multiplication and Division, Fractions and Decimals, Money, Patterns, Metric System, Perimeter, Transformations and Symmetry, and more These problems come from the book "Third Grade Math (For Homeschool or Extra Practice)"; it more thoroughly covers the topics to help your child get a better understanding of the subject. If you purchased that book, or plan to purchase that book, do not purchase this, as the problems are the same.