Download or read book Math Dictionary written by Judith De Klerk and published by . This book was released on 2011-08-02 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Can't remember the difference between a prime number and a square number? Forgotten how many sides on a pentagon (5), heptagon (7), or nonagon (9)? Then you need DK's new "Math Dictionary " Inside, you'll find more than 300 entries on the words, phrases, and concepts used by grade-school students in their math classes and in their lives outside school.