Rounding, Estimation & Bounds

Rounding, Estimation & Bounds Quiz

Spec N14–N16 · Edexcel GCSE Maths: Quiz

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5 questions, one answer each

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  1. 1. Round 5.847 to 1 decimal place.

    • A. 5.8
    • B. 5.9
    • C. 5.85
    • D. 6.0

  2. 2. Round 0.006482 to 2 significant figures.

    • A. 0.0065
    • B. 0.006
    • C. 0.0064
    • D. 0.007

  3. 3. Estimate the value of 29.6 × 3.1 by rounding to 1 significant figure.

    • A. 90
    • B. 30
    • C. 120
    • D. 60

  4. 4. A length is recorded as 24 cm to the nearest cm. What is the correct error interval?

    • A. 23 ≤ x < 25
    • B. 23.5 ≤ x < 24.5
    • C. 24 ≤ x < 25
    • D. 23.5 < x < 24.5

  5. 5. A rectangle has length 8 cm and width 5 cm, both measured to the nearest cm. What is the maximum possible area?

    • A. 40 cm²
    • B. 46.75 cm²
    • C. 44.75 cm²
    • D. 49 cm²

Quiz