Square roots Practice Problems Online

Evaluate

$\sqrt{ 25 } .$

Which of the following is the positive square root of 144?

NOTE: The notation $\sqrt{144}$ means the same thing; that is, it indicates by default the positive square root. If both roots are desired the notation $\pm \sqrt{144}$ is used.

What is the positive square root of 1?

What is the positive square root of 9?

The positive square root of a number $X$ is 4. What is $X$ ?

Concept Quizzes

Challenge Quizzes

Square roots

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.