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Capstone · Grades 7–9 Keystones #123 3 May 2026 Skills week 4 of 7
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Keystones — Capstone

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

  1. 1. Number Dividing in standard form

    Divide: 2.6 × 106 ÷ 3.6 × 106

    Answer: 7.22 × 10-1
  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 = 23cm, hypotenuse = 43cm. Find the angle

    Answer: 57.7°
  4. 4. Ratio Mixed ratio problems

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

    Answer: 2⁄10
  5. 5. Statistics Median

    Find the median of: 50, 44, 44, 56, 28, 66, 29, 45, 42

    Answer: 44

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