Lesson: Approximating Radicals Mathematics • 8th Grade

In this lesson, we will learn how to approximate the nth root of a number and then use it to solve real-world problems.

Lesson Video

Q1:

Which of the following numbers is closest to 5?

Q2:

The formula for the area of a square is , where is the side length. Estimate the side length of a square whose area is 74 square inches.

Q3:

By estimating the values of the square roots to the nearest whole number, order the following from least to greatest: , 7, , 4.