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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 CIE IGCSE Maths Writing an Expression for Core and Extended tier. Each lesson works through exam-style questions in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) format. Start with the Core-tier fundamentals in number and algebra before moving on to the more demanding Extended-only topics like calculus-adjacent algebra and advanced trigonometry.

Lessons

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