0580/12 May/Jun 2025, Question 17: Estimation
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 2 marks
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The question, in short
Round 17.8, 10.3 and 5.5 each to 1 significant figure, then use these to estimate the value of (17.8 + 10.3) ÷ 5.5.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1(20 + 10)/6
- 2= 30/6 = 5
Answer5
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