Mental Math Secrets, Math Made Simple for Fast Answers, Improve Your Memory

This book shows how to do mental math with methods designed to simplify basic math for fast and easy calculations. Basic operations covered are addition, subtraction, multiplication, and square roots. Example problems are completed with answers for practice and improving your memory. Large and small [...]
Visa längre beskrivning

This book shows how to do mental math with methods designed to simplify basic math for fast and easy calculations. Basic operations covered are addition, subtraction, multiplication, and square roots. Example problems are completed with answers for practice and improving your memory. Large and small number problems are included with real life sample problems. Exact and fast approximation techniques are shown.