Blue graph paper background with a drawing of a calculator waving goodbye while dragging a suitcase.

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

by Editors of Portable Press Author

Face it - at some point, we've all had trouble doing math in our head. Whether we're young or old, experienced or inexperienced, or if the math is easy or difficult, why take the effort to dig out the calculator app when you can do it in your head instantly? In this guide that seeks to demystify numbers and math, you will learn clear and memorable tricks for more than 125 math operations. Including do-it-yourself math projects and math puzzles, and even a bonus math section for the reader who wants a challenge, you will learn how to tackle fun math problems without giving yourself a headache!