Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Using a Calculator to Find Reciprocals of Numbers

In this worksheet, students practise finding reciprocals of numbers using a calculator.

'Using a Calculator to Find Reciprocals of Numbers' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Calculators/Technology for Accuracy

Difficulty level:  

Worksheet Overview

What is a reciprocal?

Well, a reciprocal is a <b>multiplicative inverse</b> of a number.

 

But what does that mean?

This means that when a number paired with its reciprocal and then multiplied together will give an answer of 1

 

How do we find the reciprocal?

Put simply, the reciprocal of a number is 1 divided by the number. 

 

Example

The reciprocal of 20 is 1 &divide; 20 = 0.05.

The reciprocal of 0.2 is 1&divide; 0.2 = 5

The reciprocal of 2/3 is 1 &divide; 2/3 = 3/2

 

You can either work out 1 ÷ 20 or use the reciprocal button 1/x or x-1 on the calculator.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started
laptop

Try an activity or get started for free