edi ns 1 2 interpret percents as part of a hundred
TRANSCRIPT
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
Money and Percents• $ .50 is ½ of a dollar• 50% means ½
50¢50¢ =$1.00
+CD
Understanding Relationships
50% .50 50100
12= = =
Decimal FractionFractionSimplifiedPercent
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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?
GP
what is 55 % of 100?
55GP
what is 75 % of 100?
GP
what is 75 % of 100?
75GP
what is 45 % of 100?
GP
what is 45 % of 100?
45GP
what is 100 % of 100?
100100 = 1 x 100
GP
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%
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%