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Capstone · Grades 7–9 Keystones #1 22 December 2025
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Keystones — Capstone

Five GCSE retrieval questions · 22 December 2025 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 147. What are the numbers?

    Answer: 48, 49, and 50
  2. 2. Algebra

    Solve: x⁄2 = 14.5

    Answer: x = 29
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 42cm. Find the angle

    Answer: 53.5°
  4. 4. Ratio

    Calculate 16.5% of 822

    Answer: 135.63
  5. 5. Statistics

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

    Answer: 1⁄7

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