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4024/11 Oct/Nov 2024, Question 1: Directed Numbers

Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 2 marks

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The question, in short

Temperature questions: midday is −2 °C and 6 pm is 4 °C. Find the gap between them, and the midnight value that is 9 °C below midday.

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

Part (a) · 1 mark

Work out the difference between the temperatures −2 °C and 4 °C.

  1. 14 − (−2) = 6 °C

Answer6

Part (b) · 1 mark

Starting from the midday temperature of −2 °C, find the value 9 °C lower.

  1. 1−2 − 9 = −11 °C

Answer−11

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