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Capstone · Grades 7–9 Keystones #27 12 July 2026
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Keystones — Capstone

Five GCSE retrieval questions · 12 July 2026 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 990 + 684

    Answer: 1674
  2. 2. Algebra

    Solve: x2 = 4.5

    Answer: x = 9
  3. 3. Geometry

    Find c if a = 17cm and b = 13cm in a right triangle

    Answer: 21.4cm
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 6 blue and 5 green sections. Probability of landing on red?

    Answer: 314