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From words to algebra

From words to algebra

Flowchart showing the steps for writing an algebraic expression: identify the variable, spot key words, write each part, then combine carefully

A variable is a letter such as xxx or nnn that stands for an unknown or changing number. An expression combines numbers, variables, and operations, such as x+6x+6x+6 or 5m5m5m.

Writing an Expression Lesson

  1. IGCSE
  2. /Maths
  3. /Writing an Expression

Step-by-step lessons covering Edexcel IGCSE Maths Writing an Expression for IGCSE Maths. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build confidence with the shared Foundation-tier content first, since roughly 40% of Higher-tier marks are targeted at the grades 4–5 boundary that both tiers have in common.

Lessons

Calculation ProblemsUsing a CalculatorSystematic ListingFractions of an AmountFractions, Decimals and PercentagesWriting an ExpressionAnglesArea and PerimeterProbabilityAveragesPie Charts