Mathematics

Exponents can get tricky when they turn negative. I'm not saying they have a bad attitude, I'm saying the little number above the base is a negative number. In this tutorial I will explain the...

When dealing with statistics or probability theory, the “median” refers to the measure of central tendency of a set. In layman's terms, this means the number in the middle. Note that the term...

Infinity is thought of as the largest number that can be imagined. However, there are two orders of Infinity, one which is provably larger than the other. Follow these steps to prove it yourself.

Numbers can be expressed in three forms: standard, word, and expanded form. If you struggle with teaching your student how to write numbers in expanded form, try these tips.

Converting fractions into decimals is a pretty simple process once you get the hang of it! This simple article will show you how to convert fractions into decimals in just a few easy steps.

Simplifying fractions doesn’t have to be hard—in fact it shouldn’t be! This article will show you how to simplify your fractions in just 3 easy steps.

In mathematics, a number is called "prime" if it has only two factors: 1 and itself. A number is called "composite" if has more than two factors. (0 and 1 are neither prime...

Have you ever wanted to do math in your head without using a calculator to impress your teachers of even your friends in some cases? How cool would it be if you can multiply any number you wanted...

As your kids develop it is important to give them fun math activities. In today's technical society, math is the key to success in school and in life. Everyone will have to keep track of their...

This article shows how to divide two numbers without using remainders. This guide will tell you how to divide one number by another number, using 823 divided by 7 as an example.

Little math tricks are the types of things that seem to stay with us forever. Any number than ends in a odd number is not divisible by 2, for instance. Any number that ends in an even number is...

Sometimes our memory just needs a quick jolt to remember how to add and subtract fractions. This article will remind you how to add and subtract fractions in just three easy steps to save you some...

Fractions really aren’t that hard to add, most of the time it’s just that we’ve forgotten the steps to adding them—not to worry. This quick how-to guide will freshen up your memory and remind you...

A palindrome is a number, word or sentence that reads the same forward or backwards. For example: "bob" and "radar" are word palindromes. "Madam, I'm Adam" is a short...

Ever wonder how to determine the percent change of two numbers over a period of time?

Properties are useful tools for simplifying or solving expressions. They allow you to see computations you might have originally overlooked, or they can help you find an appropriate next step....

Back in old times before calculators were allowed in math and science classes, students had to do calculations long hand, with slide rules, or with charts. Children today still learn how to add,...

The hexadecimal system is a base-16 number system. It has the regular ten digits 0 through 9, plus the six letters A, B, C, D, E, and F. It is used to encode larger numbers because it is more...

A factor tree is a useful tool. Although it has many uses, it's especially handy when finding factors of large numbers. For smaller numbers, making a list and writing the factors out is a more...

Third or fourth grade is when most children learn how to tell when a number is divisible by another number. There are simple rules for checking if a number is divisible by 2, 3, 4, 5, 6, 8, 9,...

In order to solve a math problem with fractions, you need to change a mixed number to an improper fraction. You can do this either with pictures or by multiplication.

The square root of a number is really easy to find. Let's remember first that finding the square root of a number is the opposite of finding the exponent of a number. Moreover, we are only going...

You need division to solve math problems at school, in your life, work and more... This article will teach you how to divide whole numbers. It is really easy. If you follow these steps you could...

It is amazing how a child can quickly pick up addition yet, when subtraction is introduced, they go totally blank. I have found that for many children, the switch from the plus concept to the...

Like all other math processes, you must learn the steps to subtract fractions. This can be a difficult process for some children, and even adults. Find out the easy steps to subtract fractions,...

You never know when you will be asked to calculate a number multiplied by 11. Learn how you can do this mentally without using a calculator!

To change an improper fraction to a mixed number, follow these steps.

Improper fractions are fractions that have a numerator greater than the denominator. Mixed number can be changed to improper fractions. For example 1 ½ can be changed to 3/2. The following...

We know what to do with a fraction and a whole number, but put the two together, and some people are lost. Multiplying a whole number and a fraction is quite simple, yet many people are still...

In this complicated world of ours, measurement differences exist. From standard to metric, all things can be measured in more than one way. One of these measurements is temperature. Converting...

Multiply positive and negative numbers can be confusing. Especially if you are just memorizing the rules. Take a few minutes to read this article and positive and negative numbers may start to...

A prime number is a whole number that has exactly two factors: one and itself. So, for example, two is prime: 2 x 1 = 2, but there are no other whole numbers you can multiply to get two. Six...

Multiplication may be something you haven't used in a few years. Maybe you're still in school and use it everyday. Either way, this quick and easy math trick will get you multiplying by 11 faster...

A perfect square (square number) is an integer that can be written as the square of some other number. 1 squared = 1, 3 squared = 9, 12 squared = 144, etc. Did you know that there is a neat way...

Learning multiplication facts of 9 is hard for some children. The big numbers make this a difficult task to learn these multiplication facts. Make multiplication facts of 9 so much easier on...

A common task in math is to compute what is called the absolute value of a given number. We typically use vertical bars around the number to notate this, as can be seen in the picture. We would...

An extremely common task in math is converting between what we call a mixed number and an improper fraction. This is typically even taught in the lower grades. Rather than to remember rules and...

This topic (and shortcut) not only comes up very frequently in math, but in everyday life as well. Despite this, many students are either not familiar with it, or aren't fully convinced that it...

A common task in algebra is to find what we call the factorial of a number, symbolized by an exclamation point after it. This topic comes up frequently in applications of permutations and...

A very common task in math is to multiply a fraction times an integer (whole number). For example, you might be serving half-sandwiches to 7 children, and you want to know how many whole...

Students race in this game to create a bigger number than their opponents' numbers. It can be played with 2 to 4 players. It's a great game for early finishers in class, for stations, or for a...

Kids love to play math games, and this game will help them learn properties of numbers. Kids also love guessing games, and this game uses logical deduction along with guessing. Number sense, or...

A very common task in math class is to take a fraction like 4/8 and reduce it to lowest terms. Sometimes this is referred to as simplifying the faction. Understand that "reducing" is...

Have you been separated from high school or college for quite some time? Do you need help or know someone who needs help better understanding fractions? Well either way, you are in the right place...

Multiplying and dividing signed numbers is easy. You just have to remember 3 simple rules. You also have to remember that the rules for multiplying and dividing are exactly the same, but they...

Calculating a percentage is very easy if you know how. Well you are in luck because I will explain to you how to get a percentage easily.

Some word problems in math class will ask you to increase a number by a percentage. Or, even in day to day life you may want to know about cost or population increases. Here is some handy math.

Teachers often use percentages to calculate grades. A student might receive 75% or 99%, but what does that mean? How did the teacher arrive at that amount? Other businesses calculated...

Researchers have known all along that people born with the ability to quickly estimate relative number of objects can use it daily in their lives, and not just for occasional math problems. Lets...

A non-confusing way to subtract