Yan Jiehe: Doing Business Must Understand Addition, Subtraction, and Multiplication

The addition, subtraction, multiplication, division and division of enterprises are equal to great refinement and superiority, addition is greater, subtraction is fine, multiplication is stronger, and division is superior. To do business, you must understand how to add, subtract, multiply, and remove. The addition, subtraction, and addition and subtraction of businesses mean that entrepreneurs' careers are swaying, and that they are able to advance and retreat. Why do many companies in China do badly, because they can't be retired, they can't be retired, and they can't do it. They only know how to add and do not know how to do subtraction.

At the same time, subtraction can't be done passively, and you must know how to do it actively. Life is like a high jump. It's always higher, higher, and higher. You can rest assured that when you can't jump, why don't you jump from passive to passive and become active and not jump? As soon as you see it, you will receive it. This "receiving" means defecating, adding, subtracting, multiplying, and summarizing.