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4MA1/1F Jun 2023, Question 14: Using a Calculator

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

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The question, in short

Evaluate 9 ÷ 12.4 + (5.3 × 2.8) ÷ 9.64, giving the full calculator display as a decimal, then round that result to 3 significant figures.

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Part (a) · 2 marks

Work out 9 ÷ 12.4 + (5.3 × 2.8) ÷ 9.64 as a decimal and write every figure shown on the calculator.

  1. 1First part: 9 ÷ 12.4 = 0.7258064516
  2. 2Second part: 5.3 × 2.8 = 14.84, and 14.84 ÷ 9.64 = 1.539419087
  3. 30.7258064516 + 1.539419087 = 2.265225539

Answer2.265225539

Part (b) · 1 mark

Using the answer 2.265225539 from part (a), write it correct to 3 significant figures.

  1. 1The first three significant figures of 2.265225539 are 2, 2 and 6
  2. 2The next figure is 5, so round up: 2.27

Answer2.27

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