"Understanding Percentage" PPT Courseware 2

Description

"Understanding Percentage" PPT Courseware 2

A number that expresses what percent of another number is a number is called a percentage. Percentage is also called percentage or percentage.

Percents are usually not written as fractions, but are represented by adding a percent sign "%" after the original numerator.

Distinguish

(1) China will maintain an economic growth rate of 7/100 during the Tenth Five-Year Plan period.

(2) According to figures provided by the Ministry of Personnel, the number of Chinese students returning to study abroad is currently growing at an average annual rate of 30/100.

(3) An optical cable is 81/100 meters long.

Percent characteristics:

①The denominators are the same for easy comparison.

②Only indicates the multiple relationship.

③ Use the percent sign "%" to express.

my gains

1. Today I learned what a percentage is, which means that one number is another number ( ). Percent is also called ( ) or ( ).

2. I also learned how to read percentages. 108% is read as ( ) 0.25 is read as ( )

3. I also know how to write percentages. 13.65% writing ( ) 120% writing ( )

Choose one

5% 2% 98% 100% 500%

① The qualified refrigerator products produced by a well-known refrigerator factory account for ( ) of the total number of products.

② All the students in the class passed this math test, and the number of students who passed the test accounted for ( ) of the total number of students in the class.

③According to statistics, smoking is about as likely to cause lung cancer as non-smokers ( ).

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For more information about the "Understanding Percents" PPT courseware, please click the "Understanding Percents PPT" tab.

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Update Time: 2024-09-08

This template belongs to Mathematics courseware Jiangsu Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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