Square Roots and Perfect Squares

The video tutorial explains how to find the square root of 121, highlighting that 121 is a perfect square. It begins with a general method for finding square roots, then focuses on perfect squares, providing examples like 1, 25, and 49. The tutorial demonstrates that 11 times 11 equals 121, thus the square root of 121 is 11, requiring no further simplification.

What is the first step usually taken to find the square root of a value?

• Using a calculator

• Finding the factors

• Guessing the value

• Adding the value to itself

Which of the following is a perfect square?

• 30

• 25

• 20

• 35

What is the square root of 49?

• 6

• 7

• 8

• 5

To find the square root of 121, we need to determine which number multiplied by itself equals 121. What is this number?

• 10

• 11

• 12

• 13

What is the result of 11 times 11?

• 120

• 121

• 111

• 110

When multiplying 11 by 11, what is the first step?

• 1 times 1

• 0 times 0

• 1 times 0

• 0 times 1

After adding the placeholder 0, what is the next step in the multiplication process?

• 1 times 0

• 1 times 1

• 0 times 1

• 0 times 0

What is the final answer for the square root of 121?

• 12

• 11

• 10

• 13