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Capstone · Grades 7–9 Keystones #1 16 December 2025
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Keystones — Capstone

Five GCSE retrieval questions · 16 December 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⁄7 = 3

    Answer: x = 21
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 32cm. Find the angle

    Answer: 38.6°
  4. 4. Ratio

    Calculate 20.7% of 608

    Answer: 125.86
  5. 5. Statistics

    A spinner has 6 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 1⁄2

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