# Perfect Squares and Their Roots

# Square Numbers?!?

How could a number also be a square? If you can arrange that number of items into a perfect square. Take the number 9 for example. You can take nine items and arrange them in a three by three square, so nine is a square number.

## STEP 1: WATCH THE VIRTUAL CLASS VIDEO AND TAKE NOTES

### Make sure to note the following:

The perfect squares from 0 to 100. It is not necessary that you memorize this list, but it is helpful for the non-calculator section.

The inverse, or opposite, of the second power.

Do you have a question about the class video, practice, or example problems? Post a picture to our FB group for immediate assistance. Be sure to include the lesson name and level in your post.

## STEP 2: COMPLETE ONE LEVEL OF PRACTICE

### BEGINNING

Preparing for algebra? Practice the perfect squares from 0 - 100 and find their square roots.

### EXPERIENCED

Ready to see how this skill applies to algebra? A mix of perfect squares and their roots, round perfect squares and their roots, and estimation problems.

### ADVANCED

Already skilled at basic algebra? Practice these GED® style applications of squares and cubes: negatives, fractions, and decimals, undefined expressions, and geometry.