The basic principle of 1. division
Before discussing the law of distribution, let's review the basic principle of division. Division is the operation of dividing a number into several equal parts, where the dividend represents the total number divided, the divisor represents how many parts there are, and the quotient represents the number of shares of each part.
2. Definition of distribution law
Distribution law is a basic operation rule in mathematics, which is used to understand the relationship between multiplication and addition in polynomial operation. Specifically, the distribution law stipulates the priority order and results of the two operations.
3. Distribution law of addition and multiplication
There are two forms of distribution law: additive distribution law and multiplicative distribution law. The law of addition and distribution stipulates the operation order of adding two numbers and multiplying them by another number; The law of multiplication and division stipulates the operation order of multiplying one number by two numbers and adding them.
4. Distribution law of division
For the division operation, the distribution law also applies. When we are faced with a division formula that needs multi-step calculation, the distribution law can simplify the operation process and improve the speed and accuracy of calculation.
5. Examples of application of distribution law
Consider a concrete example: calculate 48÷4+48÷8. According to the distribution law, we can convert this formula into 48+48÷4+8, and then calculate 96÷ 12, and the final answer is 8.
6. The application of distribution law in solving practical problems
Distribution law is also very useful in solving problems in real life. For example, when we need to calculate the total number of apples, we can use the distribution law of division to calculate the total number according to how many apples are in each basket.
Summary:
In the division of the second volume of the fourth grade, there is indeed a distribution law. Distribution law is a basic operation rule in mathematics, which is used to understand the relationship between multiplication and addition in polynomial operation. The distribution law of division can simplify the complicated division operation and improve the speed and accuracy of calculation. It is also widely used in solving practical problems, which can help us calculate the amount more conveniently.