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0580/23 May/Jun 2026, Question 9: Standard Form

Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Non-calculator · 3 marks

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The question, in short

Convert a number from standard form to an ordinary number, then multiply two numbers in standard form and give the result in standard form.

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

Part (a) · 1 mark

Write 7.83 × 10⁻² as an ordinary number.

  1. 1Move the decimal point 2 places left
  2. 20.0783

Answer0.0783

Part (b) · 2 marks

Work out (5.5 × 10⁶) × (2 × 10⁻³), giving the answer in standard form.

  1. 15.5 × 2 = 11
  2. 210⁶ × 10⁻³ = 10³
  3. 311 × 10³ = 1.1 × 10⁴

Answer1.1 × 10⁴

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Also searched as: 0580/23/M/J/26 · 0580_s26_qp_23 · 0580 s26 23 · question 9.
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