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Capstone · Grades 7–9 Keystones #41 10 February 2026
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Keystones — Capstone

Five GCSE retrieval questions · 10 February 2026 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 102. What are the numbers?

    Answer: 33, 34, and 35
  2. 2. Algebra

    Solve: x2 = 20

    Answer: x = 40
  3. 3. Geometry

    Find the distance between (-5, -6) and (9, 12)

    Answer: 22.8
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 14