I can t always learn percentages, how can I learn percentages well?

Percentage that indicates that a number is a percentage of another number is also called a percentage or percentage Percentage is usually not written in the form of a fraction, but is represented by the symbol " " " called the percent sign ( such as 41 , 1 is because the denominator of the percentage is 100, that is, all in 1 as a unit, easy to compare, therefore, the percentage has a very wide range of applications in industrial and agricultural production, science and technology, and various experiments Especially in the investigation and statistics, analysis and comparison, the percentage is often used

For example, if there are 100 students in the first grade, 47 of them are women, and 47 percent of the students are in writing For example, there are 200 students in the second grade, of which 100 are women, and 50% of the students are women. In the teaching of percentage problems, it is necessary to grasp the quantitative relationship of percentages (percentages) for analysis

There are three kinds of calculation problems in the percentage problem: Find how many percent of a number is another number, e.g. 45 is the hundredth of 225, i.e. 20 Find what is the percentage of a number Example:

Find what is 75 i.e. what is the hundredth of a known number, find this number: 75 is known to be 165, find this number is 165 75 220

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Categories: Education Science.

Problem description: I can't turn my brain when I finish graduating, can someone tell me more about the percentages? It allows me to learn the percentage problem well.

Analysis: The number that indicates that a number is a percentage of another number is also called a percentage or percentage Percentages are usually not written in the form of fractions, but are represented by the symbol " " " called the percent sign (such as 41, 1 is because the denominator of the percentage is 100, that is, they are all in 1 as a unit, which is easy to compare, therefore, the percentage has a very wide range of applications in industrial and agricultural production, science and technology, and various experiments Especially in the investigation and statistics, analysis and comparison, the percentage is often used

For example, if there are 100 students in the first grade, 47 of them are women, and 47 percent of the students are in writing For example, there are 200 students in the second grade, of which 100 are women, and 50% of the students are women. In the teaching of percentages, it is necessary to grasp the quantitative relationship of percentages (percentages) for analysis

There are three kinds of calculation problems in the percentage problem: Find how many percent of a number is another number, e.g. 45 is the hundredth of 225, i.e. 20 Find what is the percentage of a number Example:

Find what is 75 i.e. what is the hundredth of a known number, find this number: 75 is known to be 165, find this number is 165 75 220

Learn the percentages well and do the following five points:

1. First of all, adjust your mentality, don't feel that the percentage of knowledge points is difficult, so that there will be fear and rejection in your heart.

2. Knowledge and skills: Solve practical problems by combining life, experience the formation process of the concept of percentages, understand the meaning of percentages, master the writing of percentages, and understand the difference between percentages and fractions in meaning.

3. Process and method: In the process of solving practical problems, cultivate students' ability to cooperate and communicate, experience the relationship between the two quantities represented by the percentage, and improve the ability to solve practical problems and abstract generalization.

4. Emotional attitudes and values: Through the study of this course, students can experience the close connection between percentages and society and their wide application in life, stimulate their interest in learning the meaning of percentages, and understand the meaning of percentages, as well as the difference and connection between percentages and fractions.

5. Flexibly convert percentages into decimals, fractions, discounts, and percentages. The concept must be memorized. Pay attention to the preparation before the class, otherwise you will find the content difficult to understand during the class.

When solving the problem, you should first look for the unit "1", remember to divide the unit "1", and know that the unit "1" uses multiplication. Keep 3 decimal places when you can't divide them.