4024/12 Oct/Nov 2020, Question 7: Estimation
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 2 marks
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The question, in short
Round 6.044, 212 and 0.304 each to 1 significant figure, then use these to estimate the value of 6.044² divided by (212 × 0.304).
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 16.044 ≈ 6, 212 ≈ 200, 0.304 ≈ 0.3
- 26²/(200 × 0.3) = 36/60
- 3= 0.6
Answer0.6 or 3/5
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