0580/11 May/Jun 2025, Question 13: Directed Numbers
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Non-calculator · 2 marks
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The question, in short
Work out two short calculations involving negative numbers: a product and a sum.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Part (a) · 1 mark
Calculate the product of −5 and −4.
- 1−5 × −4 = 20 (negative × negative is positive)
Answer20
Part (b) · 1 mark
Calculate the sum of −8 and −3.
- 1−8 + (−3) = −8 − 3 = −11
Answer−11
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