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4MA1/1FR Jun 2018, Question 23: Standard Form

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 2 marks

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The question, in short

Express two given numbers in standard form.

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

Part (a) · 1 mark

Write 1 390 000 in standard form.

  1. 11 390 000 = 1.39 × 1 000 000
  2. 21 000 000 = 10⁶, so 1.39 × 10⁶

Answer1.39 × 10⁶

Part (b) · 1 mark

Write 0.005 in standard form.

  1. 10.005 = 5 × 0.001
  2. 20.001 = 10⁻³, so 5 × 10⁻³

Answer5 × 10⁻³

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