Background Tutorials

• Evaluating Expressions

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    What Are Numerical and Algebraic Expressions?

    An expression is just a mathematical phrase. In this tutorial, you'll learn about two popular types of expressions: numerical and algebraic expressions. A numerical expression contains numbers and operations. An algebraic expression is almost exactly the same except it also contains variables. Check out this tutorial to learn about these two popular kinds of expressions!

• Commutative Associative and Identity Properties

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    What are the Commutative Properties of Addition and Multiplication?

    The commutative property is a fundamental building block of math, but it only works for addition and multiplication. This tutorial defines the commutative property and provides examples of how to use it.

• Working with Exponents

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    What is an Exponent?

    If you have a repeated multiplication, you could write it using exponents! This tutorial introduces exponents and explains how they're used.

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    How Do You Convert a Number in Expanded Form into Exponential Form?

    Exponential form is a quick way to show that a number should be multiplied by itself a certain number of times. In this tutorial, see how to write a repeated multiplication in exponential form!

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    How Do You Convert a Number in Exponential Form into Expanded Form?

    Did you know that exponents are just a quick way to show repeated multiplication? In this tutorial, see how to expand out a value in exponential form to see what it really represents!

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    How Do You Evaluate an Exponent?

    Exponents just indicate repeated multiplication. Watch this tutorial to see how you can evaluate an exponent by first w

• Rules of Exponents

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    What's the Power of a Product Rule?

    There's a great trick for raising a product of two number to an exponent, and this tutorial shows you exactly that trick works.