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Capstone · Grades 7–9 Keystones #1 2 September 2025
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Keystones — Capstone

Five GCSE retrieval questions · 2 September 2025 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 141. What are the numbers?

    Answer: 46, 47, and 48
  2. 2. Algebra

    Solve: x⁄2 = 13

    Answer: x = 26
  3. 3. Geometry

    Adjacent = 19cm, hypotenuse = 28cm. Find the angle

    Answer: 47.3°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 3⁄13

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