National Bestseller: "Tricks for performing accurate mental calculations and fun alternate approaches to common math class difficulties." —Library Journal

Millions of otherwise successful adults are afraid to balance their checkbooks and don't know how to figure interest on savings or credit. Millions of students dread their math classes and live in fear of the math section of the SAT. But, as Scott Flansburg, "the human calculator," demonstrates in this revised edition, anyone can put these phobias to rest and deal with essential everyday mathematical calculations with confidence!

• Master the basics

• The real way addition, subtraction, multiplication, and division work

• Simplify calculations through estimation

• Quick-check your answers

• Convert metric measures to more familiar ones

• Figure tips, taxes, and percentages—and never get shortchanged again!