"The Meaning and Writing of Percents" PPT Courseware 2

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"The Meaning and Writing of Percents" PPT Courseware 2

Among the 100 students in the sixth grade of a certain primary school, 17 are good students, and among the 200 students in the fifth grade, there are 30 good students. Calculate what fraction of the students in the two grades each account for.

A factory selected 500 pieces from a batch of products. After inspection, 490 pieces were qualified. From this, it can be deduced that the qualified rate of this batch of products is ( ), which can also be written as ( ).

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

What is the connection between percentages and fractions? What's the difference?

1. The denominator of a percentage is 100, and the denominator of a fraction can be anything other than 0.

2. Fractions can represent either multiples of two numbers or an actual quantity; percentages can only represent multiples of two numbers, so percentages cannot have unit names. Natural number.

3. When a calculation result is expressed as a fraction, it is usually written as the simplest fraction; when a calculation result is expressed as a percentage, even those that can be reduced cannot be reduced.

This courseware provides a comprehensive introduction to the meaning and writing of percentages through small games and exercises, which improves students' interest in learning and helps them better understand and remember the knowledge points of percentages. It is a good classroom teaching courseware.

Keywords: Percent courseware, the meaning and writing method of percentage, New People's Education Edition sixth grade mathematics PPT courseware, sixth grade mathematics slide courseware download, percentage PPT courseware download, the meaning of percentage and writing PPT courseware download, .ppt format

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Update Time: 2024-10-05

This template belongs to Mathematics courseware People's Education Press Sixth Grade Mathematics Volume 1 industry PPT template

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