Learning quick calculations not only strengthens the calculation ability of addition and subtraction, but also includes multiplication, division, and even simple calculation methods of squares, cubes, square roots, fractions, equations, and systems of equations. It can help students to easily master mathematics to a large extent, build strong mathematical self-confidence, broaden their minds, expand their ways of thinking, and make their minds more flexible. As a magical mathematics book tailored for students, this book introduces the quick calculation secrets of dozens of mathematical operations in detail through examples, and attaches some selected exercises at the end of each section. Make sure you understand it at a glance and learn it at a glance. The readers can't help but sigh: Why didn't my math teacher teach me such a magical algorithm?
Reader comments
The quick calculation techniques in it are very practical, and the explanations are clear and easy to understand. It feels like a kind teacher is teaching you. I think it will be useful not only for students but also for those of us who are already working. Sometimes it can be used to calculate accounts or do simple mathematical calculations. It's a bit like the book "The Beauty of Mathematics", which also teaches mathematics in a very simple way. I'm going to buy a copy for my nephew who is in junior high school, I hope he likes it.
It's very interesting. I feel like I can appreciate the charm of mathematics through simple knowledge.
In fact, many contents are different applications of the same principle.
In essence, quick calculation still requires choosing the appropriate method according to the specific situation.
This requires practice in these methods to make you perfect
Only familiar
Practice more and memorize more
The quick calculation techniques in it are very practical, and the explanations are clear and easy to understand. It feels like a kind teacher is teaching you. I think it will be useful not only for students but also for those of us who are already working. Sometimes it can be used to calculate accounts or do simple mathematical calculations. It's a bit like the book "The Beauty of Mathematics", which also teaches mathematics in a very simple way. I'm going to buy a copy for my nephew who is in junior high school, I hope he likes it.
It's very interesting. I feel like I can appreciate the charm of mathematics through simple knowledge. In fact, many contents are different applications of the same principle. In essence, quick calculation still requires choosing the appropriate method according to the specific situation. This requires practice in these methods to make you perfect Only familiar Practice more and memorize more
This book is worth reading