德望學校 – S2數學 2A Chapter 4 Approximation and Errors – CQ (13-18)

Good Hope School – S2 Maths Exam Question (by-topic)
2A Chapter 4 Approximation and Errors – CQ (13-18)

德望學校 數學 中二考試 歷屆試題 (by-topic)

Approximation and Errors Conventional Questions (13-18)

數學試卷 只供溫習、操卷之用。

試卷答案:

  1. a i) 225
      ii) 85
    b) 3/85 or 0.0353
  2. The range is between 1224.02 m and 1276.02 m.
  3. a) 1 (min)
    b) 8.33%
    c) I agree with her.
  4. 1.11%
  5. a) 1/250 or 0.004
    b) 62.75 (s)
    c) 0.5 (s)
  6. a) 0.108%
    b) It is not pposible.
  7. a) 1.35%
    b) 784 cm3
  8. a) 0.05m
    b) 2.78%
  9. a) 0.025 kg  or 25 g
    b) 1/200 or 0.005
    c) 0.5%
  10. The range is between 247.5 mL and 252.5 mL.
  11. 10
  12. a) 800
    b i) 27
    b ii) 3.26%
  13. a) 0.05 cm
    b) 0.667%
    c i) 44.7 cm ≤ actual length < 45.3 cm
      ii) 999.045 cm2
  14. a) 0.1 mm
    b) 44.45 mm ≤ actual length < 44.55 mm
    c) It is possible.
  15. 1.03%
  16. a) max abs error = 5 mL
        Range: 395 mL ≤ actual capacity < 405 mL
    b) 1/80
    c) I disagree.
  17. a) 7.5 g
    b) 6.25%

 

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