4024/11 Oct/Nov 2023, Question 7: Estimation
Cambridge O Level Mathematics 4024 · Paper 11 (Non-calculator) · Non-calculator · 2 marks
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The question, in short
Estimate the value of 53.7 divided by (2.61 + 7.48) by rounding each number to 1 significant figure.
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Solution · 2 marks
- 153.7 ≈ 50, 2.61 ≈ 3, 7.48 ≈ 7
- 250/(3 + 7) = 50/10 = 5
Answer5 (with 50, 3 and 7 seen)
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