0580/13 May/Jun 2026, Question 21: Estimation
Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Non-calculator · 2 marks
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The question, in short
Round 341, 0.47 and 9.8 each to 1 significant figure, then use these to estimate the value of (341 × 0.47) ÷ 9.8.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1341 ≈ 300, 0.47 ≈ 0.5, 9.8 ≈ 10
- 2(300 × 0.5)/10 = 150/10
- 3= 15
Answer15
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