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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:

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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.

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