Mathematical tabloids can write mathematical knowledge points; As follows:

1, additive commutative law: Two numbers are added to exchange the position of addend, and the sum is unchanged.

2. Law of additive combination: When three numbers are added, the first two numbers are added first, or the last two numbers are added first, and then the third number is added, and the sum remains unchanged.

3. Multiplication and exchange law: when two numbers are multiplied, the position of the exchange factor remains unchanged.

4. Multiplication and association law: When three numbers are multiplied, the first two numbers are multiplied, or the last two numbers are multiplied first and then the third number, and their products are unchanged.

5. Multiplication and distribution law: When two numbers are multiplied by the same number, you can multiply the two addends by this number respectively, and then add the two products, and the result remains unchanged.

Such as: (2+4)×5=2×5+4×5.

6. Nature of division: In division, the dividend and divisor are expanded (or reduced) by the same multiple at the same time, and the quotient remains unchanged. Divide 0 by any number other than 0 to get 0.

Simple multiplication: Multiplied by 0 at the end of the multiplier. You can multiply 1 before 0, and 0 does not participate in the operation. Drop a few 0s at the end of the product before adding.

7. What is an equation? An equation in which the value on the left of the equal sign is equal to the value on the right of the equal sign is called an equation.

8、? In mathematics, the main tools for us to find truth are induction and simulation.

9、? Mathematics is a variety of proof skills.

10、? New mathematical methods and concepts are often more important than solving mathematical problems themselves.

1 1、? I always try my best to get rid of that heavy and monotonous calculation.

12、? Pursue that goal in the best time of my life ... the book has been written. It doesn't matter whether modern people read it or future generations read it. It may take a hundred years to get readers.