Some lists of numbers follow a pattern. To find that pattern, you need to know what you're looking for. This tutorial shows you how to find a pattern for a list of numbers and then write a rule that follows the pattern!
Got a set of numbers? Are they in a particular order? If so, then you have a sequence! Take a look at sequences by watching this tutorial.
When you're looking at a sequence, each value in that sequence is called a term. This tutorial explains the definition of the term of a sequence. Take a look!
To add numbers, you can line up the numbers vertically and then add the matching places together. This tutorial shows you how to add numbers vertically!
Subtracting numbers is easier than you might think! Watch this tutorial to see the step-by-step process of lining up the numbers vertically to subtract them.