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Algebra: Substitution into Expressions with Fractions (1)

In this worksheet, students substitute values into expressions with fractions.

'Algebra: Substitution into Expressions with Fractions (1)' worksheet

Key stage:  KS 3

Curriculum topic:   Algebra

Curriculum subtopic:   Substitute Numerical Values for Formulae/Expressions

Difficulty level:  

Worksheet Overview

When we substitute a number for a letter, we simply replace the letter with the number.

 

Example

Work out the value of the following expression when a = 4 and b = 9

 

a + b
2 3

 

Answer

We substitute a = 4 and b = 9 into the following expression:

 

a + b
2 3

  

= 4 + 9
2  3

 

=  2  +  3  =  5

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