Warm Up 1/10/11
1. About 64% of all
individuals who
have flown in space
from 1961 to 2001
are from the united
states. Write this
percent as a fraction
and a decimal.
1/10/2011
• In 2000, 11 out of
every 20 school
aged children (aged
6 to 17) had
computer access at
home and school.
Write this ratio as a
percent.
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Homework Review
p. 218
1/10/2011
2
5-6 Percents and
Decimals
Why do students read?
• Write the percent
of students who
read for fun as a
fraction.
• Write the fraction
as a decimal.
1/10/2011
For Fun/
Pleasure
42%
To get
information
35%
To make
decisions
9%
Find out
others’
thoughts
7%
4
Percents as decimals
• Ben makes 64.3% of his free throws.
Write this percent as decimal.
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5
Percents as Decimals
• To write a percent as a decimal, divide
the percent by 100 and remove the
percent symbol.
• 25% = 0.25
• 88.6% = 0.886
• Shortcut: Move the decimal two spaces
to the left.
• If the percent has a fraction, make it a
decimal first, 33 ¼ % = 33.25%
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6
Decimals as Percents
• New Mexico’s land area is about 0.03 of
the total area of the US. What percent
is New Mexico’s land area of the total
area of the US?
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7
Decimals as Percents
• Andrea’s batting average is 0.362.
Write her batting average as a percent.
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8
Decimals as Percents
• To write a decimal as a percent,
multiply the decimal by 100 and add a
percent symbol.
• 0.58=58%
• 0.875=87.5 %
• Shortcut: Move the decimal two spaces
to the right.
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