Equipped with this handy reference of more than 400 illustrated definitions, children will be able to quickly find the definitions and illustrated examples that will enable them to solve many of the math challenges they face. Covering everything from "addend" to "zero," this comprehensive resource gives students definitions, illustrations, and examples that can help them solve math problems. This handbook includes illustrated, concise explanations of the most common terms used in general math classes. The 400 illustrated definitions and examples are categorized by subjects that include: measurement; algebra; geometry; fractions and decimals; statistics and probability; and problem solving. Each term has a concise definition and an example or illustration. This is a guide that needs to be on every child"s desk. The Math Dictionary is much more than a compilation of words and definitions. This book has been organized to reflect the different areas of mathematics taught in elementary and junior high schools. Within each category are all the terms commonly used in this field of study, concise definitions, and many examples and illustrations. In addition, the last chapter provides instructions for basic operations and tables of commonly-used facts and equivalents. For other dictionary-type references in other topics see The Absolutely Essential Grammar Guide and The Absolutely Essential Writing Guide. Grades 4–9