today we will compute a given percent as a part of a whole number. compute – figure out an answer...
TRANSCRIPT
![Page 1: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/1.jpg)
Today we will compute a given percent as a part of a whole
number.
compute – figure out an answer using math
percent – per one hundred (100)whole number –numbers that start with zero and have no decimals or
fractions Concept
![Page 2: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/2.jpg)
When you take a test your score is shown as a percent.
For example, lets say you take a math test that has 100 questions on it. If you score 70%, the number of answers correct is 70.
APK
![Page 3: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/3.jpg)
Percent means per hundred. It is another way of saying, “out of one hundred.”
Percent
CD
![Page 4: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/4.jpg)
Whole Numbers are numbers that start with zero and do not have decimals or fractions.
Whole Numbers
CD
![Page 5: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/5.jpg)
Books! I have read 95% of the
books out of my 100-book-
collection.
95 books
CD
![Page 6: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/6.jpg)
How to compute a given percent of a whole number.
• 1. When you see a percent problem you know when you read “of” in the problem you multiply.
• 2. Change your percent to a decimal and then move it two places to the left.
• 3. Multiply just like a regular decimal multiplication problem.
• Place the decimal point 2 places to the left in your answer.
![Page 7: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/7.jpg)
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a Whole Number
• The first thing to remember is “of” means multiply in mathematics.
of = x
![Page 8: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/8.jpg)
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a Whole Number
• Step 1 - When you see a percent problem you know when you read “of” in the problem you multiply.
25% of 200x
![Page 9: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/9.jpg)
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a Whole Number
• Step 2 – Change your percent to a decimal and then move it two places to the left.
25% x 200..
![Page 10: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/10.jpg)
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a Whole Number
• Step 3 – Multiply just like a regular decimal multiplication problem.
200x .251000+4005000
![Page 11: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/11.jpg)
Copyright © 2000 by Monica Yuskaitis
How to Find the Percent of a Whole Number
• Step 4 – Place the decimal point 2 places to the left in your answer.
200x .251000+4005000.
![Page 12: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/12.jpg)
Copyright © 2000 by Monica Yuskaitis
What is the percent of this number?
820x .20000
+164016400
.
20 % of 820.. x1. When you see a percent problem you know when you read “of” in the problem you multiply.2. Change your percent to a decimal and then move it two places to the left.3. Multiply just like a regular decimal multiplication problem.Place the decimal point 2 places to the left in your answer.
![Page 13: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/13.jpg)
Copyright © 2000 by Monica Yuskaitis
What is the percent of this number?
725x .40000
+290029000.
40 % of 725.. x21
1. When you see a percent problem you know when you read “of” in the problem you multiply.2. Change your percent to a decimal and then move it two places to the left.3. Multiply just like a regular decimal multiplication problem.Place the decimal point 2 places to the left in your answer.
![Page 14: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/14.jpg)
Multiply the decimal equivalent of the percent with the whole number.
75% of 4
.754x 0
2
3 0.
1. When you see a percent problem you know when you read “of” in the problem you multiply.2. Change your percent to a decimal and then move it two places to the left.3. Multiply just like a regular decimal multiplication problem.Place the decimal point 2 places to the left in your answer.
![Page 15: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/15.jpg)
What is 50% of a dozen(12)?
50% = ½ = .50Therefore:
(dozen) 12 X .50 = .5012x
01 0
.005+
6 00
6
![Page 16: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/16.jpg)
What is 40% of 20?
40% = 40/100 = .40Therefore:
20 X .40 = .4020x
0 0
.008+
8 00
8
![Page 17: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/17.jpg)
What is 3% of 36?
3% = 3/100 = .03Therefore:
36 X 0.03 = .0336x
8 1
.090+
1 08
1.08
1
![Page 18: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/18.jpg)
Why is understanding percent of a whole number important?• You will know the relationship between any
whole number and a percent.
• You will know how a percent translates into decimals.
• What are other reasons why it is important to know how to understand
IMP
![Page 19: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/19.jpg)
What is 4% of 56?
4% = 4/100 = .04Therefore:
56 X 0.04 = .0456x
4 2
.002+
2 24
2.24 2
1. When you see a percent problem you know when you read “of” in the problem you multiply.2. Change your percent to a decimal and then move it two places to the left.3. Multiply just like a regular decimal multiplication problem.Place the decimal point 2 places to the left in your answer.
![Page 20: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/20.jpg)
What is 12% of 144?
12% = 12/100 = .12Therefore:
144 X .12 = .12144x
84
.
084+
17 28
17.28
0021
1. When you see a percent problem you know when you read “of” in the problem you multiply.2. Change your percent to a decimal and then move it two places to the left.3. Multiply just like a regular decimal multiplication problem.Place the decimal point 2 places to the left in your answer.
![Page 21: Today we will compute a given percent as a part of a whole number. compute – figure out an answer using math percent – per one hundred (100) whole number](https://reader031.vdocuments.net/reader031/viewer/2022013011/56649e715503460f94b6f05b/html5/thumbnails/21.jpg)
Let’s review what we learned about computing a given percent as a part of a whole number?
• What does percent mean?
• How do you writeas a decimal?
• How do you compute a given percent as a part of a whole number?
“out of a hundred”
10% 0.10
Multiply the whole number with the decimal equivalent of the percent.