How to Approximate Square Roots Without a Calculator

How to Approximate Square Roots Without a Calculator

Assessment

Interactive Video

Mathematics, Other

10th - 12th Grade

Hard

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FREE Resource

This video tutorial teaches how to estimate square roots of non-perfect squares. It covers identifying non-perfect squares, using a number line to find integer bounds, and estimating square roots to the nearest hundredth. The video explains the properties of non-perfect squares, such as being irrational and non-repeating, and introduces a pattern in the number of non-perfect squares between perfect squares. It also provides a step-by-step method to estimate square roots without a calculator, using a ratio and rounding technique.

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4 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine if a square root is a non-perfect square?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the estimated value of sqrt(33) based on the perfect squares it lies between?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of identifying the radicand in the estimation process?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how to find the square root of a negative number based on the discussion in the video.

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