Estimating Square Roots Lesson | GCSE Maths Edexcel Higher

Estimating Square Roots

This lesson covers:

How to estimate the square root of non-square numbers like surds.

Estimate the value of √42

5.5

7.5

4.5

6.5

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Estimate the value of $\sqrt{72}$

(give your answer to 1 decimal place)

8.5

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Estimate the value of $\sqrt{61}$

(give your answer to 1 decimal place)

7.8

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Estimate the value of $\sqrt{103}$

(give your answer to 1 decimal place)

10.1

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Estimate the value of $\sqrt{54}$

(give your answer to 1 decimal place)

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1

Estimate the value of $\sqrt{23}$

(give your answer to 1 decimal place)

4.8

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Estimate the value of $\sqrt{91}$

(give your answer to 1 decimal place)

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1

Estimate the value of $\sqrt{130}$

(give your answer to 1 decimal place)

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