module3
DESCRIPTION
TRANSCRIPT
![Page 1: Module3](https://reader036.vdocument.in/reader036/viewer/2022062615/547e4e32b4af9fa1028b464b/html5/thumbnails/1.jpg)
Types of Strategies to Solve Percentage ProblemsBy: Kari Knisely
![Page 2: Module3](https://reader036.vdocument.in/reader036/viewer/2022062615/547e4e32b4af9fa1028b464b/html5/thumbnails/2.jpg)
What you will learn…
When and how to use the following strategies:
10% Rule
Percent Proportion
Percent Equation
Percent of Change Equation
Tic-Tac-Toe Table
![Page 3: Module3](https://reader036.vdocument.in/reader036/viewer/2022062615/547e4e32b4af9fa1028b464b/html5/thumbnails/3.jpg)
What you will need…
Take notes as needed in order to familiarize yourself with the strategies presented.
Pencil
Paper
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10% Rule
Great way to estimate any percentage problem
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10% Rule
Move the decimal 1 place to the left
10% of 40 = 4.0
10% of 32.6 = 3.26
10% of 2 = .2
10% of 5,345 =
534.5
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10% Rule – Example 1
40% of 25 = ? 10% of 25 = 2.510% of 25 = 2.5
10% of 25 = 2.5
10% of 25 = 2.5
40% of 25
= 10.0
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10% Rule –Example 2
30% of 30 = ? 10% of 30 = 3.010% of 30 = 3.010% of 30 = 3.030% of 30
= 9.0
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10% Rule –Example 3
30% of 30 = ? 10% of 30 = 3.010% of 30 = 3.010% of 30 = 3.030% of 30
= 9.0
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Percent Proportion
PartWhole
%100
=isof
%100
=Non Percentage Amount
Non Percentage Amount
Percentage Amount
Percentage Amount
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Percent Proportion – Example 1
PartWhole
%100
=isof
%100
=Non Percentage Amount
Non Percentage Amount
Percentage Amount
Percentage Amount
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Percent Proportion – Example 2
PartWhole
%100
=isof
%100
=Non Percentage Amount
Non Percentage Amount
Percentage Amount
Percentage Amount
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Percent Proportion – Example 3
PartWhole
%100
=isof
%100
=Non Percentage Amount
Non Percentage Amount
Percentage Amount
Percentage Amount
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Percent Equation
% Whole = Part
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Percent Equation – Example 1
% Whole = Part
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Percent Equation – Example 2
% Whole = Part
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Percent Equation – Example 3
% Whole = Part
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Percent of Change Equation – Example 1
New – Old Old
= Percent of Change
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Tic-Tac-Toe
Whole/Original Amount
Change (+ or -)
Part of Original Amount
100
%
%
Start
+ or -
End
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Tic-Tac-Toe – Example 1
Whole/Original Amount
Change (+ or -)
Part of Original Amount
100
%
%
Start
+ or -
End
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What you learned…
When and how to use the following strategies:
10% Rule
Percent Proportion
Percent Equation
Percent of Change Equation
Tic-Tac-Toe Table
![Page 21: Module3](https://reader036.vdocument.in/reader036/viewer/2022062615/547e4e32b4af9fa1028b464b/html5/thumbnails/21.jpg)
Works Cited
All images retrieved from Google images