Calculate quickly

Author: Liu Houti
Publisher:
Publish Date: 2003-12-01
Features: After reading this book, you might ask: Does this book cover all the fast calculation methods? At this point, please remember: Knowledge is endless. As long as you understand the principles, you can create many new methods on your own. Also, when you are reading this book, if you encounter anything you don’t understand, I hope you think deeply, discuss more with your classmates, and ask your teachers and parents. When learning each fast calculation method, you might find it a bit troublesome, and it might seem faster to calculate step by step using the usual method. At this point, please remember the two lines of poetry from the ancients: "To see a thousand miles, climb one more story." Every time you overcome a learning difficulty, you will gain infinite joy. When you first learn a fast calculation method, you may not calculate quickly, and you might even make mistakes. At this point, please remember the saying "Practice makes perfect." You are not yet proficient, so you need to do more practice and find exercises for yourself anytime, anywhere. Each section of this book has exercises, and the answers are provided at the end of the book. Masterpieces of Famous Scientists · China Popular Science Masterpieces. Mr. Liu Houti is a famous popular science writer in China. He has been engaged in popular science writing since the 1940s. "Fast Calculation" is a popular science work he wrote in the early 1960s, which is deeply loved by a broad audience of young children. It has been revised and reprinted many times and translated into multiple languages, with a cumulative print run of nearly ten million copies, truly making it an outstanding bestseller. This book will be very helpful for young friends who are interested in mathematics. If you also master the methods in this book, it will bring a qualitative leap to your mental and oral calculation skills.