Four operations refer to four basic mathematical operations: addition, subtraction, multiplication and division.

Definition of one or four arithmetic operations

Four operations refer to operations including addition, subtraction, multiplication and division. Specifically, these four operations are defined as follows:

Addition: the operation of combining two numbers into one number.

Subtraction: The operation of finding the other addend by knowing the sum of two addends and one of them.

Multiplication: A simple operation to find the sum of several identical addends.

Division: the operation of finding another factor by knowing the product of two factors and one of them.

Second, the role of four operations

Four operations can help solve various practical problems, whether it is shopping, calculating costs or evaluating risks, it can help to make accurate calculations and analysis.

For example, through addition and subtraction, the sum or difference of two numbers can be calculated, so as to process and compare the data. Through multiplication and division, the product or ratio of two values can be calculated, so as to better understand the meaning and function of data.

Methods of learning four operations:

First, understand the operating rules.

Before learning four operations, you need to understand the rules and significance of operations. Addition means merging similar items, subtraction means removing a part from a number, multiplication means multiplying the number, and division means dividing a number into several equal parts. After understanding these laws, we can better master the methods of four operations.

Second, practice the basic questions

By practicing the basic questions, you can master the methods and skills of four operations. For example, when practicing addition, you can start with simple two-digit addition, gradually increase the difficulty and practice multi-digit addition. When practicing subtraction, you can gradually increase the number of digits of the minuend and the minuend, and gradually transition from single digits to multiple digits.

When practicing multiplication, you can gradually increase the number of digits of multiplier and multiplicand, and gradually transition from simple two-digit multiplication to multi-digit multiplication. When practicing division, you can start with simple integer division, gradually increase the difficulty and transition to fractional division.

Third, cultivate mathematical thinking.

Four operations are not only a calculation method, but also an important way to cultivate mathematical thinking. By analyzing problems, we can judge the order and priority of operations and cultivate our logical thinking ability and mathematical thinking ability. At the same time, through inductive reasoning, I can better master the laws and methods of the four operations and improve my mathematics level.