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Capstone · Grades 7–9 Keystones #42 27 July 2026
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Keystones — Capstone

Five GCSE retrieval questions · 27 July 2026 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 114. What are the numbers?

    Answer: 37, 38, and 39
  2. 2. Algebra

    Solve: x⁄5 = 6.2

    Answer: x = 31
  3. 3. Geometry

    Adjacent = 25cm, hypotenuse = 35cm. Find the angle

    Answer: 44.4°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 5⁄12

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