If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

To log in and use all the features of Khan Academy, please enable JavaScript in your browser.

Main content

Unit: Rational numbers, irrational numbers, and roots

0

Possible mastery points

Square roots & cube roots

Learn

Practice

Square rootsGet 5 of 7 questions to level up!
Cube rootsGet 5 of 7 questions to level up!
Roots of decimals & fractionsGet 3 of 4 questions to level up!

Equations involving roots

Learn

Practice

Equations with square roots & cube rootsGet 3 of 4 questions to level up!
Square and cube challengeGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 400 Mastery points

Irrational numbers

Learn

Practice

Classify numbers: rational & irrationalGet 5 of 7 questions to level up!
Classify numbersGet 5 of 7 questions to level up!

Approximating irrational numbers

Learn

Practice

Approximating square rootsGet 3 of 4 questions to level up!
Comparing irrational numbersGet 5 of 7 questions to level up!
Comparing irrational numbers with a calculatorGet 5 of 7 questions to level up!

Sums & products of rational & irrational numbers

Learn

Practice

Rational vs. irrational expressionsGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 480 Mastery points

Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 1100 Mastery points!