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Capstone · Grades 7–9 Keystones #215 3 August 2026 Skills week 4 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 3 August 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing in standard form

    Divide: 4.4 × 108 ÷ 4.5 × 105

    Answer: 9.78 × 102
  2. 2. Algebra Solving non-monic quadratics

    Solve: 6x² + 11x + 3 = 0

    Answer: x = -1⁄2 or x = -1
  3. 3. Geometry SOHCAHTOA — missing angle

    Adjacent = 23cm, hypotenuse = 41cm. Find the angle

    Answer: 55.9°
  4. 4. Ratio Mixed ratio problems

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics Median

    Find the median of: 75, 61, 74, 34, 48, 38, 31, 39, 30, 62, 24

    Answer: 39

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