Mathematics GCSE
expressions as rules
What expressions as rules means in Mathematics GCSE, as defined for Pearson Edexcel.
Definition of expressions as rules
Check what you remember
Read the wording for your board, then hide it and explain expressions as rules in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A simple expression can be read as a rule, so 3x − 4 is multiply by 3, then subtract 4.
Topics that use expressions as rules
- Algebra - Notation, vocabulary and manipulation (Pearson Edexcel GCSE)
Related terms
- algebraic equivalence
- algebraic notation
- algebraic proof
- Base
- Coefficient
- collecting like terms
- composite functions
- Conjugate
Using expressions as rules in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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