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0580/22 Oct/Nov 2025, Question 1: Directed Numbers

Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Non-calculator · 1 mark

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The question, in short

Find how much the temperature rises from −12 °C at 4 am to 21 °C at 4 pm.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Solution · 1 mark

  1. 1Increase = 21 − (−12) = 21 + 12 = 33 °C

Answer33

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