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Mini-Quiz: Square Roots

by Ron Kurtus (updated 18 January 2022)

Take this Mini-Quiz to check your understanding of the lesson material.

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1. What is the square root of 121?

±11

±12

It can't be done

2. What is the approximate square root of 2?

±2

±1.414

±4

3. What is an example of an imaginary number?

There are no examples, since it is number that you cannot see

√−1

1²

If you got all three correct, you are on your way to becoming a Champion in Algebra. If you had problems, you had better look over the material again.

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Get to the root of the matter

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Resources and references

Ron Kurtus' Credentials

Websites

Roots and Radicals - Purplemath.com

Square Root Calculator - Math.com

Square Root - Wikipedia

Algebra Resources

Books

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Top-rated books on Algebra

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Where are you now?

School for Champions

Algebra topics

Mini-Quiz: Square Roots

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Algebra topics

Basics

• Definition of Algebra
• Purpose of Algebra

Terminolgy

• Terminology Used in Algebra
• Variables and Constants
• Operations and Symbols
• Algebraic Expressions

Properties

• Addition and Multiplication
• Product of Negative Numbers
• Algebra of Objects
• Imaginary Numbers

Expressions

• Combining Like Terms
• Multiplying Binomial Expressions

Exponents and roots

• Exponents
• Exponent Rules
• Multiplication with Exponents
• Division with Exponents
• Exponents to the Power of 10
• Square Roots
• Newton's Approximation

Equations

• Linear Equations
• Solving One Variable Equation

Quadratic equations

• Quadratic Equations
• Solving Equations by Factoring
• Completing the Square Method
• Using the Quadratic Formula
• Derivation of Quadratic Formula

Also see

• Algebra Survey Results
• Arithmetic
• Physical Science
• Chemistry
• Good Grades

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