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Capstone · Grades 7–9 Keystones #22 22 January 2026
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Keystones — Capstone

Five GCSE retrieval questions · 22 January 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: x⁄5 = 5.8

    Answer: x = 29
  3. 3. Geometry

    Adjacent = 30cm, hypotenuse = 38cm. Find the angle

    Answer: 37.9°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 5⁄13

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