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Capstone · Grades 7–9 Keystones #26 11 July 2026
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Keystones — Capstone

Five GCSE retrieval questions · 11 July 2026 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 123. What are the numbers?

    Answer: 40, 41, and 42
  2. 2. Algebra

    Solve: x⁄5 = 2.4

    Answer: x = 12
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 37cm. Find the angle

    Answer: 55.4°
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 3 blue and 2 green sections. Probability of landing on red?

    Answer: 3⁄8

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