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4MA1/1FR Jan 2020, Question 1: Understanding Decimal Place Value

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

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The question, in short

Use the digits 3, 2, 6 and 8 to form the largest four-digit number, then from the list 24, 20, 1, 8, 9, 27, 17, 15 pick a multiple of 6 and a prime number.

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Part (a) · 1 mark

Arrange all four digits 3, 2, 6 and 8 to make the greatest possible four-digit number.

  1. 1Arrange the digits 3, 2, 6, 8 in descending order: 8, 6, 3, 2
  2. 2Form the number 8632

Answer8632

Part (b) · 1 mark

From 24, 20, 1, 8, 9, 27, 17, 15, choose a number that is a multiple of 6.

  1. 1Check which numbers in the list are divisible by 6
  2. 224 ÷ 6 = 4
  3. 3So 24 is a multiple of 6

Answer24

Part (c) · 1 mark

From 24, 20, 1, 8, 9, 27, 17, 15, choose a number that is prime.

  1. 1Check the numbers in the list for primality
  2. 217 has no divisors other than 1 and itself
  3. 3So 17 is a prime number

Answer17

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