Percents

Percents

Locating fractions and decimals on a number line

Where do fractions and decimals live on the number line? This pages shows you how to accurately locate fractions and decimals on a number line.

Converting percents into fractions and decimals

Percents can be converted into fractions and decimals. This lesson shows how. $$20\mbox{%}=\frac{1}{5}\mbox{          }83.2\mbox{%}=0.832$$

Converting fractions and decimals into percents

All fractions and decimals can be turned into percentages. $$\frac{1}{4}=25\mbox{%   }0.6\,=60\mbox{%}$$

Percents

This is the cover page for the PERCENTS unit.

Mental math with percents

Learn how to use mental math for solving some percent problems.

50%............25%............10%............20%............1%

Review solving percent word problems

Practice solving percent questions.

Finding the part

Learn how to find the part of something when you are given the percent and the whole. Sample:

There are 40 kids riding on a bus. 60% of the students have green backpacks. How many students have green backpacks?

Estimating percents

Estimating the percent of a square that has been shaded in. A java applet provides you with some practice estimating percents. Sample problem here.

Arrange fractions, decimals, and percents from least to greatest

This applet provides practice for sorting a set of fractions, decimals, and percents in order from least to greatest.

Finding the whole

If you know are given the percent and the part, how much is the whole? Sample:

This is 30% of the apples in the barrel. How many apples are in the entire barrel?

 
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