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Capstone · Grades 7–9 Keystones #68 9 March 2026 Skills week 4 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 9 March 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing in standard form

    Divide: 4.3 × 106 ÷ 8.9 × 105

    Answer: 4.83 × 100
  2. 2. Algebra Solving non-monic quadratics

    Solve: 2x² + 10x + 12 = 0

    Answer: x = -2 or x = -3
  3. 3. Geometry SOHCAHTOA — missing angle

    Adjacent = 29cm, hypotenuse = 39cm. Find the angle

    Answer: 42°
  4. 4. Ratio Mixed ratio problems

    In ratio 4:2:2, what fraction is the second part?

    Answer: 2⁄8
  5. 5. Statistics Median

    Find the median of: 36, 55, 56, 50, 73, 70, 27, 34, 35, 72

    Answer: 55

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