IXL | Percents of numbers | 6th grade math

or

Fill in the missing number.

50% of 8 =

ref_doc_title.

or

Learn with an example

question

What is 80% of 100?

key idea

A percent is 1 part out of 100.

1%
is
equal
to
1
100
or
0.01.

Proportions can be used to solve percent problems.

part

whole

=

percent

100

solution

The whole is 100.

The percent is 80%.

Let n represent the part.

Write a proportion to solve for n.

n

100

=

80

100

100n

=

80 · 100

100n

=

8,000

100n ÷ 100

=

8,000 ÷ 100

n

=

80

80% of 100 is 80.

You could also find the answer by writing and solving an equation:

part	=	percentage of whole

n	=	80% · 100

n	=	0.8 · 100

n	=	80

80% of 100 is 80.

Looking for more? Try these:

Lesson: Percents

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Teacher tools

Work it out

Not feeling ready yet? These can help:

U.7Convert between percents, fractions, and decimals

Multiply a decimal by a whole number

L.2Multiply fractions by whole numbers II

Lesson: Percents