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Study Guide

Thinking of natural numbers, we can transport ourselves back to simpler times. The good ol' days...

In a weird way, numbers are like chameleons: they change with their location. Depending on its...

Translating spoken-word phrases into algebraic expressions is the start to an awesome session of...

The order in which we complete a mathematical equation or expression is super important. Doing...

In life, a picture is worth a thousand texts, a good shortcut is worth extra time on Minecraft,...

Extra! Extra! Math police give rule on "order" in addition or multiplication!It's front-page...

Prime factorization is the process of breaking down a number into its prime factors.Say...

The Least Common Multiple, or LCM, of two or more numbers is the smallest number other than zero...

The absolute value of a number is the number's distance from zero on a number line.

Like we saw earlier, integers is just a fancy name for whole numbers (0, 1, 2, 3,…) and...

Here's the secret to adding integers: one positive and one negative added together cancel...

Subtraction is the opposite of addition. Here's a little mantra to help us remember how it works...

You've made it past addition and subtraction. Guess what's next? It's time to learn the ropes...

As young math whipper-snappers, we added five 4s like this: 4 + 4 + 4 + 4 + 4Then we learned a...

Roots are sort of like the opposites of powers. The square root of 9, written as ,...

A burst of energy created from two black holes smashing into each other 1.3 × 109 years ago...

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