Today we will interpret percent as a part of a hundred. interpret – figure out; understand percent – per one hundred (100) Concep t
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Today we will interpret percent as a part of a hundred.
interpret – figure out; understand
percent – per one hundred (100) Concept
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 correct, your percentage would be 70 %.
APK
Percent means per hundred. It is another way of saying, “out of one hundred.”
Percent
CD
Definition“Cent” is a Latin root word which
means 100. Many words have come from the root cent such as:
•century•centimeter•centipede •cent
CD
One hundred
100CD
CD
100 pennies = $1.00
CD
More examples• $ .50 is ½ of a dollar• 50% means ½
50¢50¢ =$1.00
+CD
Money & Percents
50% .50 50100
12= = =
Decimal FractionFractionSimplifiedPercent
CD
100 books! I have read 95 books out of my 100-book- collection.
95 %CD
20 out of 100 = 20%
or
CD
10
10
40 out of 100 = 40%
Or
CD
10
10
50 out of 100 = 50%
or
CD
10
10
10 out of 100 units are shaded blue.
CD
= 10 %10
100
30 out of 100 units are shaded blue.
CD
= 30 %30
100
80 out of 100 units are shaded blue.
CD
= 90 %90
100
Why is understanding percent important?• You will know the relationship between any number and 100 as a percent.
• You will know how a percent translates into fractions.
• What are other reasons why it is important to know how to understand
IMP
What is the
Percentage?
If 24 out of 100 units are shaded blue.
GP
= __ %_24_100
What is the
Percentage?
If 32 out of 100 units are shaded blue.
GP
= __ %_32_100
What is the
Percentage?
If 16 out of 100 units are shaded blue.
GP
= __ %_16_100
what is 55 % of 100?
55GP
what is 75 % of 100?
75GP
what is 45 % of 100?
45GP
what is 100 % of 100?
100100100 = 1 x 100
GP
How we are going to interpret percent as a part of a hundred.
1. Look at the diagram representing 100
2. Count the shaded boxes inside the 100’s chart
3. Write the answer in fraction form and percentage
There are 10 boxes shaded!
= 10%=
How we are going to interpret percent as a part of a hundred.
1. Look at the diagram representing 100
2. Count the shaded boxes inside the 100’s chart
3. Write the answer in fraction form and percentage
There are 31 boxes shaded!
= 31%
How we are going to interpret percent as a part of a hundred.
1. Look at the diagram representing 100
2. Count the shaded boxes inside the 100’s chart
3. Write the answer in fraction form and percentage
There are 51 boxes shaded!
= 51%
How we are going to interpret percent as a part of a hundred.
1. Look at the diagram representing 100
2. Count the shaded boxes inside the 100’s chart
3. Write the answer in fraction form and percentage
There are 50 boxes shaded!
= 50%=
How we are going to interpret percent as a part of a hundred.
1. Look at the percentage
2. Think about what that would represent on the 100’s chart
3. Write the answer in fraction form.
4. Could you reduce the fraction any further?
35%
=
How we are going to interpret percent as a part of a hundred.
1. Look at the percentage
2. Think about what that would represent on the 100’s chart
3. Write the answer in fraction form.
4. Could you reduce the fraction any further?
45%
=
How we are going to interpret percent as a part of a hundred.
1. Look at the percentage
2. Think about what that would represent on the 100’s chart
3. Write the answer in fraction form.
4. Could you reduce the fraction any further?
75%
=
How we are going to interpret percent as a part of a hundred.
1. Look at the diagram representing 100
2. Count the shaded boxes inside the 100’s chart
3. Write the answer in fraction form and percentage
There are 10 boxes shaded!
= 10%
How we are going to interpret percent as a part of a hundred.
1. Look at the diagram representing 100
2. Count the shaded boxes inside the 100’s chart
3. Write the answer in fraction form and percentage
There are 10 boxes shaded!
= 10%
Let’s review what we learned about how to interpret percent as a part of a
hundred• What does percent mean?
• How do you writeas a percentage?
• How do you write 80% as a fraction?
“out of a hundred”
10%
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