Maths
Formulae in Symbols & Substitution
Use simple formulae written in symbols, substituting values for letters.
MathsAge 11+25 minutes
What this topic covers
- Read a formula in symbols (y = 3x + 2; P = 4s) and know that 3x means 3 × x.
- Substitute a value and calculate, respecting order of operations.
- Substitute into formulae with two letters (A = lw, C = 2n + 3).
Core concept summaries
Key ConceptsSymbolsSubstitutingTwo Letters and the 3x Trap
Practice formats pupils may meet
NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.
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