Western Normal University Edition First Grade Mathematics Volume 1
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Beijing Normal University Edition Seventh Grade Mathematics Volume 1
People's Education Press Third Grade Mathematics Volume 1
People's Education Press Second Grade Mathematics Volume 1
Beijing Normal University Edition Fifth Grade Mathematics Volume 1
Hebei Education Edition Third Grade Mathematics Volume 1
Hebei Education Edition Seventh Grade Mathematics Volume 2
Beijing Normal University Edition Seventh Grade Mathematics Volume 2
Qingdao Edition Seventh Grade Mathematics Volume 1
People's Education High School Mathematics Edition B Compulsory Course 2
Beijing Normal University Edition Eighth Grade Mathematics Volume 1
Qingdao Edition Seventh Grade Mathematics Volume 2
Jiangsu Education Edition Fourth Grade Mathematics Volume 1
Qingdao Edition Second Grade Mathematics Volume 2
People's Education Press First Grade Mathematics Volume 2
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Category | Format | Size |
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Jiangsu Education Edition Sixth Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Find what percentage of one number is another number" Understanding Percents PPT Courseware 2
There are 50 people in the Ginkgo Choir, 20 boys and 30 girls.
What percentage of the total number of boys are there?
What percentage of the total number of girls are girls?
What fraction of the number of boys are there compared to the number of girls?
To find out what fraction of one number is another, use division.
What percentage of the distance Li Fang ran was that of Wang Hong?
4÷5=0.8=80%
What percentage of the distance Wang Hong ran was Lin Xiaogang's?
5÷7≈0.714=71.4%
When answering the question "find what percent of one number is another", you must find the correct unit "1" and use the amount of unit "1" as the divisor.
Find what fraction of one number is another number,
To find out what percentage of one number is another, use division.
The salt content of brine indicates the concentration of brine.
When 1.25 grams of salt is put into 100 grams of water, the salt content of the salt water is 25%. ( )
2. A germination test was conducted with 110 seeds with a high germination rate. As a result, 100 seeds germinated, and the germination rate was 100%. ( )
3. The flour extraction rate of wheat cannot reach 100%. ( )
4. Randomly inspected 101 parts and all were qualified. The pass rate of this batch of parts was 101%. ( )
5. The myopia rate of students in Class 6 (1) is 14%, and the myopia rate of students in Class 6 (2) is 16%, which means that there are more people with myopia in Class 6 (2). ( )
6. Planted 100 saplings, 5 died, and 5 were replanted later. The survival rate of all saplings is 100%. ( )
There are 75 science and technology books in the book corner, and the number of literature and art books is 15 less than the number of science and technology books.
There are ( )% fewer literature and art books than science and technology books.
Find out what percentage of the number of literature and art books there are fewer than science and technology books, that is, find what percentage of the number of literature and art books there are fewer than science and technology books.
For a section of the road, it takes A 20 minutes to complete the journey and B to complete the journey 25 minutes.
The time ratio of A and B is ( );
The time it takes for B to complete the journey is A’s ( );
A's speed is ( )% of B's speed.
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For more information about the PPT courseware "Find out what percent of one number is another number and recognize percentages", please click the "Find out what percent of one number is another number ppt knowledge about percentages" ppt tag.
"Find what percentage of one number is another number" PPT courseware for understanding percentages:
"Finding what percentage of one number is another number" Understanding Percents PPT Courseware Review 1.15 What fraction of 20 is it? 2.What fraction of 480 kilograms is equivalent to 120 kilograms? 3. Convert the following numbers into percentages. 0.75= 1.25= 0.432= 1/3 3...
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