Estimating Square Roots

The video tutorial explains how to estimate the square root of 80 by identifying it between the square roots of 8 and 9. The instructor suggests an estimate of 8.95, which is close to the actual value of 8.94, as verified by a calculator. This method involves understanding the proximity of 80 to the perfect squares 64 and 81, and making an educated guess based on this range.

What is the square root of 8?

• 4

• 16

• 64

• 8

Which two numbers is the square root of 80 between?

• 6 and 7

• 9 and 10

• 7 and 8

• 8 and 9

Why is the square root of 80 closer to 8.9?

• Because 80 is closer to 64 than 81

• Because 80 is closer to 81 than 64

• Because 80 is exactly between 64 and 81

• Because 80 is a perfect square

What is the estimated square root of 80 according to the video?

• 8.9

• 8.95

• 9.0

• 8.5

What is the actual square root of 80 when calculated?

• 8.94

• 8.95

• 9.0

• 8.9