Perfect Squares and Their Roots

Square Numbers

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

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Take the list of whole numbers (0,1,2,3...) and square them, raise them to the second power, and you'll get a very special list of numbers known as the perfect squares. Knowing your perfect squares and their inverses, the square roots, will assist you in all types of problems- from arithmetic to algebra to geometry.

Watch the Virtual GED Class video for a complete explanation and tons of worked example problems.



Practice the three Quizlet sets above until you have the perfect squares and their roots memorized. See example #1-2 below.

Perfect Squares and Their Roots- Experienced

A mix of perfect squares and their roots, round perfect squares and their roots, and estimation problems. See examples #3-7 below.

Perfect Squares and Their Roots Advanced

GED style applications: negatives, fractions, and decimals, undefined expressions, and geometry. See challenge and extension example videos below.


Beginning 1

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Experienced 1

Experienced 2

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Advanced 1

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Advanced 7

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Extension 1

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Extension 7