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Capstone · Grades 7–9 Keystones #33 2 February 2026
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Keystones — Capstone

Five GCSE retrieval questions · 2 February 2026 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 108. What are the numbers?

    Answer: 35, 36, and 37
  2. 2. Algebra

    Solve: x2 = 10

    Answer: x = 20
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 27cm. Find the angle

    Answer: 38.9°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 38