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CAIE IGCSE Mathematics Core C2.1 Introduction to Algebra Questions

Practise writing expressions from everyday contexts and substituting values into formulae with powers, negatives and units.

Syllabus
2028–2030
Course
Mathematics 0580
Level
Core

Exam points

  • write expressions for changing totals, costs or distances using the given letters
  • substitute positive or negative values into formulae and calculate the result

Covered syllabus points

C2.1.1 Know that letters can be used to represent generalised numbers.C2.1.2 Substitute numbers into expressions and formulas.

Question 1

[Maximum number: 2]

A bar of chocolate costs $ 3 and a bag of sweets costs $ 5.
Write down an expression for the total cost, in dollars, of x bars of chocolate and y bags of sweets.
$

Question 2

[Maximum number: 2]

W=t2(7t−4)W=\frac{t}{2}(7t-4)
Find the value of W when t=18.
W=

Question 3

[Maximum number: 2]

The table gives information about the costs of hiring bikes.

Table for Question 3 — CAIE IGCSE Mathematics Core

The cost, M, of hiring a mountain bike for d days can be written as M=35d+5\quad M=35 d+5.

Write a formula for the cost, E, of hiring an electric bike for d days.

E=
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