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Math

Join our Math World now to meet up with other math students and mathematicians on the Web. Learn how to perform basic math functions, and share your own tips and tricks for solving problems and calculating answers for everything math related, from algebra to geometry to trigonometry to advanced calculus.
Graph showing multiple mathematical functions with annotations.
Apr 30, 2010

This video tells us the method to work with the coordinate plane in algebra. The first step tells us the method to determine the coordinates of a given point on the coordinate plane. For this, go para ...

How to find an angle using alternate interior angles, with steps outlined for understanding.
Apr 30, 2010

In this video tutorial, viewers learn how to find an angle using alternate interior angles. Make sure that the angles are alternate interior angles. Alternate interior angles are angles that are on th ...

Decimal place value diagram showing tenths, hundredths, thousandths, ten-thousandths, and hundred-thousandths.
Apr 30, 2010

Decimal numbers are numbers which contain a integral part before a point and a decimal part after the point. The first step in solving decimal arithmetic is being able to understand decimal numbers. R ...

Handwriting notes on simplifying rational expressions, with mathematical examples shown.
Apr 29, 2010

From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to f ...

Math lesson diagram showing the factorization of 135, with division steps illustrated.
Apr 29, 2010

Need help reducing radical expressions without perfect square or cube roots? Take heart: this free math lesson will ensure that you know everything you need to know for that next big test. Examples in ...

Hands using a red protractor and a green pen on a white sheet of paper.
Apr 29, 2010

If you have a circular or semicircular protractor like the one used in this video, making a pie chart is as easy as – well — pie. This will teach you how to use your protractor to measure out each ind ...

Teacher explaining the conversion of decimals to fractions on a whiteboard.
Apr 29, 2010

For certain equations, you will need to convert decimal numbers into fractions. If this is the case, there are a few quick steps you will need to take to do so.So, if you can't remember how to do thi ...

Hand demonstrating a mathematical calculation for percentages on a whiteboard.
Apr 29, 2010

Percents are handy for displaying statistics or labeling objects such as sale items in a store, or ingredient labels. However, in a math equation, a percent is a bit difficult to use. Therefore, you ...

Fraction to Decimal Conversion Example: 8/40 shown as numerator divided by denominator.
Apr 29, 2010

Sometimes it is much easier to work out an equation if your numbers are in decimal form instead of fractions. This is especially useful if you are using a basic calculator.Check out this tutorial and ...

Converting decimals into fractions and percents, with calculations and examples.
Apr 29, 2010

Decimal numbers, fractions and percents are pretty much three versions of the exact same value.In this tutorial, learn how to work with all three and convert them within each other.This video will wal ...