0580/32 May/Jun 2026, Question 25: Irrational Numbers
Cambridge IGCSE Mathematics 0580 · Paper 32 (Core) · Calculator · 1 mark
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Identify which of the four listed values are irrational by circling them.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 1 mark
- 1331776⁰·²⁵ = ⁴√331776 = 24, rational
- 27/13 is a fraction, rational; 6432.89¹⁷ is a terminating decimal to a whole power, rational
- 3√0.4 = √(2/5) cannot be written as a fraction, irrational
Answer√0.4
Stuck on a step? Read the free lesson: Irrational Numbers
Practise more irrational numbers questions
Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on irrational numbers
Also searched as: 0580/32/M/J/26 · 0580_s26_qp_32 · 0580 s26 32 · question 25.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.