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Simple Algebraic Substitution with Decimal Numbers

In this worksheet, students substitute decimal numbers for letters and work out the value of simple expressions with one variable.

'Simple Algebraic Substitution with Decimal Numbers' worksheet

Key stage:  KS 2

Year:  Year 5 11+ worksheets

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Decimals

Difficulty level:  

Worksheet Overview

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

However, we must remember that 4b means 4 x b.

 

Example

Work out the value of the following expression when a = 0.4

3a - 1

 

Answer

3a - 1

= 3 x a - 1

= 3 x 0.4 - 1

= 1.2 - 1

= 0.2

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