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4MA1/1FR Jun 2019, Question 5: Directed Numbers

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 3 marks

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The question, in short

Using a table of January temperatures for five Canadian cities, find temperature differences and a temperature calculated from another city's value.

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

Part (a) · 1 mark

Find the difference between the Vancouver and Edmonton temperatures.

  1. 16 − (−8) = 6 + 8 = 14

Answer14

Part (b) · 1 mark

Find how much lower Yellowknife's temperature is than Ottawa's.

  1. 1Yellowknife is −23 °C and Ottawa is −5 °C
  2. 2−5 − (−23) = −5 + 23 = 18
  3. 3Yellowknife is 18 °C lower than Ottawa

Answer18

Part (c) · 1 mark

Find Winnipeg's temperature, which is 8 °C greater than Quebec's.

  1. 1−20 + 8 = −12

Answer−12

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