# Substitution Worksheet

• Section 1 of the worksheet contains 27 skills based substitution questions, in 3 groups to support differentiation
• Section 2 contains 4 applied substitution questions with a mix of worded problems and deeper problem solving questions
• Section 3 contains 3 foundation and higher level GCSE exam questions to practise substitution into algebraic expressions and formulae
• Answers and a mark scheme for all substitution questions are provided
• Follows variation theory with plenty of opportunities for students to work independently at their own level
• All questions created by fully qualified expert secondary maths teachers
• Suitable for GCSE maths revision for AQA, OCR and Edexcel exam boards

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### Substitution at a glance

Algebra substitution involves replacing letter terms with numerical values in algebraic expressions and formulas. Positive and negative numbers, along with decimals and fractions can be substituted into a variety of different types of expressions such as linear expressions and quadratic expressions.

More complex expressions could involve brackets, indices or square and cube roots. In order to correctly evaluate an expression once values have been substituted into it we must use order of operations. Substitution is a skill that can be applied to other areas of the mathematics curriculum to substitute numbers into formulas for area, volume and speed etc..

Looking forward, students can then progress to additional simplifying expressions worksheets and on to more algebra worksheets, for example a solving equations with fractions worksheet, linear equations worksheet or simultaneous equations worksheet.

For more teaching and learning support on Algebra our GCSE maths lessons provide step by step support for all GCSE maths concepts.

## Do you have KS4 students who need more focused attention to succeed at GCSE?

There will be students in your class who require individual attention to help them succeed in their maths GCSEs. In a class of 30, it’s not always easy to provide.

Help your students feel confident with exam-style questions and the strategies they’ll need to answer them correctly with our dedicated GCSE maths revision programme.

Lessons are selected to provide support where each student needs it most, and specially-trained GCSE maths tutors adapt the pitch and pace of each lesson. This ensures a personalised revision programme that raises grades and boosts confidence.

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