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Capstone · Grades 7–9 Keystones #1 2 October 2025
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Keystones — Capstone

Five GCSE retrieval questions · 2 October 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 993 + 667

    Answer: 1660
  2. 2. Algebra

    Solve: x6 = 3

    Answer: x = 18
  3. 3. Geometry

    Find c if a = 15cm and b = 18cm in a right triangle

    Answer: 23.4cm
  4. 4. Ratio

    Calculate 12.8% of 777

    Answer: 99.46
  5. 5. Statistics

    A spinner has 4 red, 5 blue and 3 green sections. Probability of landing on red?

    Answer: 13