Download or read book Mental Math Challenges written by Michael L. Lobosco and published by Tamos Books. This book was released on 2000 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Imagine guessing someone's age with just three simple questions, totaling up any five shopping items faster than a calculator, or changing the color of a toothbrush in a flash. You can--with these colorful math challenges. All you need are some readily available materials, a sense of fun, and the desire to experiment. Do instant calculations and mind reading, vanishing tricks and illusions, precision measuring without instruments, and solitaire pastimes. Create beauty with circles and flexagons--and make a terrific paperweight with a tetrahedron! With just a little patience and effort, you'll meet every one of these challenges. 80 pages (all in color), 8 1/2 x 10. NEW IN PAPERBACK