0580/11 May/Jun 2026, Question 13: Estimation
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Non-calculator · 2 marks
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The question, in short
Estimate the value of (9.57 × 3.84)/(6.72 + 1.13) by rounding each number to 1 significant figure.
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Solution · 2 marks
- 19.57 ≈ 10, 3.84 ≈ 4, 6.72 ≈ 7, 1.13 ≈ 1
- 2(10 × 4)/(7 + 1) = 40/8
- 3= 5
Answer5
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