Estimating Square Roots

In this worksheet, students estimate square roots.

Key stage: KS 3

Curriculum topic: Number

Curriculum subtopic: Understand Integer Powers/Real Roots

Difficulty level:

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Worksheet Overview

QUESTION 1 of 10

This table shows the first few whole numbers and their squares.

1	2	3	4	5	6	7	8	9	10
1	4	9	16	25	36	49	64	81	100

This means that the √81 = 9 and √100 = 10.

It also means that the square root of any number between 81 and 100 lies between 9 and 10.

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