Have you ever wanted to be able to make complex math calculus in your mind, without a calculator? You've come to the right place!
This book encompasses every topic on mental math calculation that you can ever encounter in daily life or in an exam. Techniques are thoroughly introduced, described, and explained through the usage of proper and adequate examples and basic general math properties and formula. In this book, I will teach you simple, yet very important tips and tricks that will cause you to be able to solve math problems in a matter of minutes, if not seconds, without using the calculator.
Here's a gist of what you'll learn:
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