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Capstone · Grades 7–9 Keystones #219 7 August 2026 Skills week 4 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 7 August 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing in standard form

    Divide: 4.3 × 107 ÷ 3.2 × 106

    Answer: 1.34 × 101
  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 = 26cm, hypotenuse = 46cm. Find the angle

    Answer: 55.6°
  4. 4. Ratio Mixed ratio problems

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics Median

    Find the median of: 61, 77, 33, 36, 20, 45, 22, 43, 30, 75, 54

    Answer: 43

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