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Capstone · Grades 7–9 Keystones #139 19 May 2026
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Keystones — Capstone

Five GCSE retrieval questions · 19 May 2026 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 105. What are the numbers?

    Answer: 34, 35, and 36
  2. 2. Algebra

    Solve: x⁄2 = 5.5

    Answer: x = 11
  3. 3. Geometry

    Adjacent = 20cm, hypotenuse = 26cm. Find the angle

    Answer: 39.7°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 2 red, 6 blue and 5 green sections. Probability of landing on red?

    Answer: 2⁄13

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