Percentage Concept One
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Transcript of Percentage Concept One
PercentageConcept One
What Does Percent Mean?
Percent means “out of 100”. So 41% is like saying 41 parts out of 100.
Imagine a 100 page magazine. If you read 41 pages, you’ve read 41% of the magazine.
What Does Percent Mean?
Percents show a portion (41 pages) of a 100 part whole (100 pages). If we’re talking about 100 pages, the whole, we are talking about 100%.
Where Do We See Percentage
in Real Life?
QUIZ
In a poll of 100 voters, 63 said they wanted a new train station. What percent of voters want a new train station
100%63%37%
Correct!
Out of 100 voters (the whole), 63 voters (the
part) said they wanted a new train station.
That’s 63 out of 100 or 63%.
Sorry, that’s incorrect.
Out of 100 voters (the whole), 63 voters (the
part) said they wanted a new train station.
That’s 63 out of 100 or 63%.
How Can We Show Percents as Fractions?
41% = 41 out of 100 or 41/100.
In fractions, the bottom number represents the whole (100 parts) and the top number represents the parts we’re talking about (41).
100% is the same as 1, since 100 ÷100= 1.
QUIZ
Which fraction represents 77%?
7/100
77/100
77
Correct!
77% = to 77 out of 100 or 77/100.
Sorry, that’s incorrect.
77% = to 77 out of 100 or 77/100.
QUIZ
Paris took a 100 question test. She answered 80 of the questions correctly. Which fraction represents the number of correct answers?
88/100
80/100
80/10
Correct!
80 out of 100 = 80% or 80/100.
Sorry, that’s incorrect.
80 out of 100 = 80% or 80/100.
RevisionPercent means “out of 100”.
The table below represents the test results of seven year 5 students. Copy the table into your book and fill in the gaps.
Out of 100 Fraction Percent
e.g. 77 out of 100 e.g. 77/100 e.g. 77%
80/100
90%
74 out of 100
22/100
35%
72 out of 100