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Study Guide

**Basic operations** are the building blocks and rules of math. They're like learning the rules of the road in Driver's Ed. We know the four basic rules: add, subtract, multiply, divide. Now we're going to combine them in new ways to do new things.

We already know that if we add the same number a bunch of times, we can take a shortcut and just multiply. If we subtract the same number a bunch of times, we can divide. Now we'll learn a way to multiply the same number a bunch of times with exponents, or divide a number so many times that there's nothing left to divide, as in prime factorization. These combined operations are like replacing a two-lane country road with a highway. We still have all the same old rules, but now we'll zoom along and have a quicker, easier way to get to more interesting places.

**Math Doesn’t Suck**

Here’s a great book for
middle school girls with practical tips and extra practice problems.

**Kiss My Math**

This is another book by Danica McKellar geared toward pre-algebra girls.

**What's Math Got to Do with It?: How Parents and Teachers Can Help Children Learn to Love Their Least Favorite Subject**

This is an interesting book for parents and teachers
alike, although we have no idea why math would be anyone’s least favorite
subject…

**Operation Order**

A quick game to practice
problems, using order of operations. Try the hardest level.

**Order of Operations**

Simple practice problems for when you're just starting out.

**Exploring Order of Operations**

Bulk up your PEMDAS chops. This game *only* asks about the order in which you should do a problem; there's no actual solving.

**Product Game**

This is a two-player game to
practice finding factors of numbers.

**Prime Factorization Tool**

This prime factorization tool will
factorize even the biggest numbers.
Great for checking your answers!

**Prime Curios!**

Some fun trivia about prime
numbers.

**Factor Trees, GCF, and LCM**

This is an awesome tool to practice factor trees, LCMs, and
GCFs!

**Math, Prime Factorization, Multiples, Factors**

This site has a fun *Jeopardy!*-style game to play with one or two
players. It's good practice for factorizing and finding multiples.

**The Highest Common Factor and the Lowest Common Multiple**

Here's a cute, quick game to practice LCMs and GCFs.

**Math Problems with LCM & GCF**

Great practice with word problems involving LCMs and GCFs.

**Line Jumper**

Use a number line to drop a dude out of a plane.

**Color Chips - Addition**

This site shows a nice illustration of using pluses and
minuses to solve addition problems.

**Arithmetic Four**

This is a fun two-player game using all operations
with integers. It's similar to the old favorite Connect Four. Can you beat your buddy?

**Secret Worlds: The Universe Within**

This is an interactive view from the Milky Way to the atoms in a leaf as
seen through powers of 10. Talk about an ultra zoom.

**Square Root Flashcards**

Uh, the title pretty much says it all. These are flash cards for practicing square roots.

**Scientific Notation**

A quiz game to test your mad scientific notation skillz.

**XPMath**

Another quick game for practicing scientific notation.

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