Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Substituting Negative Numbers

In this worksheet, students substitute negative numbers into algebraic expressions.

'Substituting Negative Numbers' worksheet

Key stage:  KS 3

Curriculum topic:   Algebra

Curriculum subtopic:   Understand Expressions, Equations, Inequalities, Terms and Factors

Difficulty level:  

Worksheet Overview

In this worksheet, we will learn how to substitute negative numbers.

 

Substitute the negative numbers into the expressions instead of the letter.


Example

Evaluate
2x+3
4x
   when X = -5  

leaving your answer as a fraction.    

 

Answer

2x(-5)+3
4x(-5)
=
-10+3
-20
=
-7
-20
=
7
20
 


 

Remember: Multiplying or dividing two negative numbers gives a positive answer.

Multiplying or dividing one positive and one negative number, gives a negative answer.

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

  • educational
  • bettfutures
  • cxa
  • pta
  • era2016
  • BDA award
  • Explore LearningTuition Partner
  • tacm