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Find Cube Roots of Numbers

In this worksheet, students will work out cube roots.

'Find Cube Roots of Numbers' worksheet

Key stage:  KS 2

Year:  Year 5 Maths worksheets

Curriculum topic:   Number: Multiplication and Division

Curriculum subtopic:   Recognise Square/Cube Numbers

Difficulty level:  

Worksheet Overview

This activity is all about cube roots.  All answers are positive.


A cube root is the number we multiply by itself and then by itself again to get another number which we call a cube number.


Here's a reminder of the first three cube numbers. 


cube numbers


So, we know that 5 x 5 x 5 = 125 

125 is a cube number.

Which means that 5 is the cube root of 125.


Let's try an example question.



What is the cube root of 1,000?



This is a cube number and its root that you should be able to memorise quite easily.


10 x 10 x 10 = 1,000


So 10 cubed is 1,000 and the cube root of 1,000 must therefore be 10!


Now let's try some questions about cube roots.


group of children thinking

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