CAIE IGCSE Mathematics Core C2.1.1 Know that letters can be used to represent generalised numbers.

Practise using letters to represent changing quantities in worded contexts involving costs, distances, totals and simple formulae.

Syllabus
2028–2030
Objective
C2.1.1
Level
Core

Exam points

  • write an expression for a total by multiplying each quantity by its stated rate or cost
  • include fixed amounts, bonuses or change in the correct place in the expression
  • choose the correct letter for each worded quantity before combining the terms

C2.1.1 Know that letters can be used to represent generalised numbers. question 1

[Maximum number: 2]

Miguel works in an office.

White paper costs w cents per sheet and pink paper costs p cents per sheet.
Miguel uses 56 sheets of white paper and 21 sheets of pink paper.
Write down an expression, in terms of w and p, for the total cost, in cents, of the paper he uses.
cents

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