Lemmara logoLemmaraWorked solution

0580/12 Feb/Mar 2021, Question 16: Standard Form

Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 3 marks

اقرأ هذا الحل مشروحاً بالعربي ←

The question, in short

Write 567 000 000 in standard form, then from a list of numbers in standard form find the largest and smallest and multiply them, giving 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

Express 567 000 000 in standard form.

  1. 1567 000 000 = 5.67 × 100 000 000
  2. 2= 5.67 × 10⁸

Answer5.67 × 10⁸

Part (b) · 2 marks

From the six given numbers in standard form, multiply the largest by the smallest and give the answer in standard form.

  1. 1Largest = 6.2 × 10² = 620, smallest = 6.35 × 10⁻² = 0.0635
  2. 2620 × 0.0635 = 39.37
  3. 3= 3.937 × 10¹

Answer3.937 × 10¹

Stuck on a step? Read the free lesson: Standard Form

Practise more standard form questions

Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.

Practise free on Lemmara

More past-paper questions on standard form

Also searched as: 0580/12/F/M/21 · 0580_m21_qp_12 · 0580 m21 12 · question 16.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.