0580/12 Oct/Nov 2025, Question 9: Directed Numbers
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 2 marks
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The question, in short
Given midday Monday temperature −3 °C and 10 pm Monday temperature −15 °C, find the difference between them and the Tuesday midday temperature 23 °C higher than Monday 10 pm.
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Part (a) · 1 mark
Calculate the difference between the temperatures −3 °C and −15 °C.
- 1Difference = −3 − (−15) = 12°C
Answer12
Part (b) · 1 mark
Calculate Tuesday's midday temperature, which is 23 °C higher than −15 °C.
- 1−15 + 23 = 8°C
Answer8
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