Primary school mathematics

A number that represents the fraction of one number to another is called a percentage. Percentages are also called percentages or percentages. Percentages are usually not written in the form of fractions, but expressed by adding a percent sign "%"after the numerator. There are many percentages in life.

The weather forecast program on TV will broadcast the weather situation and precipitation probability of that night and tomorrow day every day, prompting everyone to prepare in advance, just like the precipitation probability of tonight is 20%, and there will be a strong wind of 5 ~ 6 in the daytime tomorrow, and the precipitation probability is 10%, so you should add clothes sooner or later. 20% and 10% are clear and concise.

With the rapid development of science and technology, every middle-aged person is now equipped with various styles of mobile phones. Glenn Wilson, a psychologist at Royal College, University of London, has proved that reading short messages with his head down all the time will lead to low work efficiency and slow down the brain reaction ability of staff, and the IQ of people who read short messages often will drop by 10%, which once again proves in percentage form that although mobile phones provide convenience for people, they are very harmful to human health.

This is the information about percentage that I found in my life. I believe that as long as you observe carefully, you will also find that percentage is everywhere in your life.

80%

China is the largest producer of energy-saving lamps in the world, but 80% of its products are exported, and the domestic consumption is seriously low.

47. 1%

According to 200 1 undergraduate and junior college students, 47. 1% of the contracted college students have a monthly salary below 1500 yuan.

85.53%

According to an online survey, 85.53% of netizens have never read a famous book in recent years. In addition, 8.58% netizens have never read a famous book in the past ten years, and 6.75% netizens said that they have never read a famous book.

Not only mathematics, but also thinking caused by mathematics!