數學試卷答案 – St. Stephen’s Girls’ College Form 1 Math Mid-Year Exam 2015-16

試卷答案

Section A

  1. \(-0.5, -\frac{1}{5}, 0.6, \frac{2}{3}, \frac{5}{7}\)
  2. 0
  3. 1260
  4. 1/4 kg
  5. \((b-a)\div\dfrac{c^{2}d}{2}\) or
    \((b-a)\div(c^{2} · \dfrac{d}{2})\)
  6. a) 4
    b) -5a and a
    c) -1
  7. 2xy + x
  8. 12p – 7
  9. a) x = -18
    b) x = 7
  10. -18
  11. 2x + 4 ≥ -4
  12. 3/8 or a round angle
  13. 60°
  14. 9%
  15. 80
  16. \(6\frac{2}{3}%\)
  17. $250
  18. -4.8%
  19. 320
  20. Total number of small squares = 676
    Number of white small square = 76

Section B

  1. -6
  2. a) 15
    b)10
  3. a) 0 km
    b) i) d = 3.5x – 10
        ii) any answer less than \(6\frac{6}{7}\) and not less than 0
  4. No
  5. a) and c)

    b) 84°
    d) i) ΔPNR is an isosceles triangle.
        ii) ΔPNQ is a right-angled triangle.
  6. x = 7
  7. a) 40
    b) Not possible
  8. a) $50000
    b) 150

St. Stephen’s Girls’ College Form 1 Math Mid-Year Exam 2015-16 試卷

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