See Ya Later Calculator Simple Math Tricks You Can Do in Your Head

See Ya Later Calculator demystifies numbers and math. With these simple, precise, and downright magical math tricks, readers can do everyday math faster than it takes to dig out their phone and find the calculator app. Clear, step-by-step, easily memorizable directions demonstrate more than 125 math operations anyone can do in their head. Plus, it features do-it-yourself math projects, puzzles, and even a bonus section for advanced mathophiles. Get ready to tackle fun problems such as…

How to easily square any number
How to add three-digit numbers
How to use a mirror to measure the height of a building.
How to make a ruler out of a dollar bill
How to use geometry to paint walls, cut floor tiling, and do other home renovations
How to subtract numbers…by adding

And lots more...no calculator required.

Portable Press is a tight-knit group of writers, researchers, and editors who are responsible for some of the publishing industry’s most popular non-fiction trivia and facts books. Aside from creating the fan-favorite Uncle John’s Bathroom Reader series (more than 16 million books in print since 1988), the Portable Press team also specializes in regional and kids’ titles, plus gift books, activity books, and whatever else strikes their fancy. They are based in Ashland, Oregon.