Background Tutorials

• Solving Equations by Subtracting

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    What's the Subtraction Property of Equality?

    Solving equations can be tough, especially if you've forgotten or have trouble understanding the tools at your disposal. One of those tools is the subtraction property of equality, and it lets you subtract the same number from both sides of an equation. Watch the video to see it in action!

• Solving Equations by Dividing

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    What's the Division Property of Equality?

    Solving equations can be tough, especially if you've forgotten or have trouble understanding the tools at your disposal. One of those tools is the division property of equality, and it lets you divide both sides of an equation by the same number. Watch the video to see it in action!

• 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.

• Rules of Exponents

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    What's the Power of a Power Rule?

    Sometimes you'll see a number with an exponent raised to another exponent, and the first time you see it, you probably think it's a typo! But it's not a typo, it's a real thing, and there's a really nice trick for making it simpler that you'll see in the video.