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4MA1/2FR Jun 2019, Question 5: Square Numbers

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2FR (Foundation) · Calculator · 3 marks

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The question, in short

From the eight listed numbers 10, 23, 27, 30, 42, 52, 74, 81, choose one that fits each of three given descriptions.

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

Part (i) · 1 mark

Pick a number from the list that is a square number.

  1. 181 = 9 × 9
  2. 2So 81 is a square number

Answer81

Part (ii) · 1 mark

Pick a number from the list that divides 50 exactly.

  1. 150 ÷ 10 = 5 exactly
  2. 2So 10 is a factor of 50

Answer10

Part (iii) · 1 mark

Pick a number from the list that is prime.

  1. 123 has only the factors 1 and 23
  2. 2So 23 is prime

Answer23

Stuck on a step? Read the free lesson: Square Numbers

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