
Approximating square roots (video) | Khan Academy
Learn how to find the approximate values of square roots. The examples used in this video are √32, √55, and √123. The technique used is to compare the squares of whole numbers to the number we're …
Understanding square roots (video) | Khan Academy
Learn how square root means what number multiplied by itself will result in the given number. Created by Sal Khan and Monterey Institute for Technology and Education.
Square root of decimal (video) | Radicals | Khan Academy
Learn how to find the square root of a decimal number. The problem solved in this video is p^2 = 0.81.
Intro to cube roots (video) | Khan Academy
Learn the meaning of cube roots and how to find them. Also learn how to find the cube root of a negative number.
Simplifying square roots | Algebra (video) | Khan Academy
Wouldn't the answer to a square root really be positive and negative? For instance, if we wanted the square root of 9, it would be 3 and -3? because 3x3=9 and -3x-3=9?
Understanding square roots (video) | Khan Academy
Learn how square root means what number multiplied by itself will result in the given number. Created by Sal Khan and Monterey Institute for Technology and Education.
Square roots review (article) | Khan Academy
When you have the square root of a fraction, you take the square roots of the numerator and denominator separately. For example, the square root of 16 = 4, while the square root of 25 = 5.
Square-square roots and Cube-cube roots | Class 8 (OD) - Khan Academy
Practice Square roots using prime factorisation (advanced) Get 3 of 4 questions to level up!
Exponents & radicals | Algebra 1 | Math | Khan Academy
Let's review exponent rules and level up what we know about roots. The square root is nice, but let's learn about higher-order roots like the cube root (or 3rd root).
Square Roots and Cube Roots | TG Math Class 8 | Khan Academy
Practice Square roots using prime factorisation (advanced) Get 3 of 4 questions to level up!