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Capstone · Grades 7–9 Keystones #15 15 January 2026
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Keystones — Capstone

Five GCSE retrieval questions · 15 January 2026 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 138. What are the numbers?

    Answer: 45, 46, and 47
  2. 2. Algebra

    Solve: x⁄4 = 2.75

    Answer: x = 11
  3. 3. Geometry

    Adjacent = 21cm, hypotenuse = 33cm. Find the angle

    Answer: 50.5°
  4. 4. Ratio

    Calculate 15% of 620

    Answer: 93
  5. 5. Statistics

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

    Answer: 1⁄5

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