0580/22 Oct/Nov 2025, Question 8: Constructing Equations
Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Non-calculator · 2 marks
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The question, in short
Kemi buys p pens at 40 cents each and pays with $20; write an expression in p for her change in cents.
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Solution · 2 marks
- 1$20 = 2000 cents; p pens cost 40p cents
- 2Change = 2000 − 40p cents
Answer2000 − 40p
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