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Capstone · Grades 7–9 Keystones #28 13 July 2026
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Keystones — Capstone

Five GCSE retrieval questions · 13 July 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

    Find the next term: 1, 4, 10, 19, ...

    Answer: 31
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 34cm. Find the angle

    Answer: 51.9°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 512