Percents

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.

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

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

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

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

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

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

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?*