Estimating Square Roots and Their Approximations

The video tutorial by Mr. Honker covers irrational numbers, focusing on square roots. It explains how square roots are the inverse of squares and demonstrates how to estimate them using integers and decimals. The tutorial includes examples of estimating square roots of numbers like 12, 41, and 79, and addresses negative square roots. The goal is to provide a better understanding of approximating irrational numbers, emphasizing the importance of precision in mathematical estimations.

What is the inverse operation of squaring a number?

• Square root

• Division

• Multiplication

• Addition

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CCSS.8.EE.A.2

Which of the following is a perfect square?

• 5

• 3

• 4

• 2

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CCSS.8.EE.A.2

Between which two integers does the square root of 12 lie?

• 5 and 6

• 2 and 3

• 3 and 4

• 4 and 5

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CCSS.8.NS.A.2

What is the approximate value of the square root of 41?

• 5.5

• 7.2

• 6.8

• 6.5

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CCSS.8.NS.A.2

How are negative square roots treated differently on the number line?

• They are placed above positive square roots.

• They are placed below positive square roots.

• They are placed to the left of positive square roots.

• They are placed to the right of positive square roots.

Tags

CCSS.8.NS.A.2

Between which two integers does the negative square root of 8 lie?

• -2 and -1

• -3 and -2

• -1 and 0

• -4 and -3

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CCSS.8.NS.A.2

Which perfect squares are used to estimate the square root of 11?

• 25 and 36

• 16 and 25

• 9 and 16

• 4 and 9

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CCSS.8.NS.A.2

What is a good estimate for the square root of 11?

• 3.7

• 3.1

• 3.5

• 3.3

Tags

CCSS.8.NS.A.2

Which perfect squares are used to estimate the square root of 79?

• 100 and 121

• 49 and 64

• 64 and 81

• 81 and 100

Tags

CCSS.8.NS.A.2

What is a good estimate for the negative square root of 3?

• -1.9

• -1.5

• -1.7

• -1.3

Tags

CCSS.8.NS.A.2