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Capstone · Grades 7–9 Keystones #1 10 April 2025
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Keystones — Capstone

Five GCSE retrieval questions · 10 April 2025 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 144. What are the numbers?

    Answer: 47, 48, and 49
  2. 2. Algebra

    Solve: x⁄2 = 8.5

    Answer: x = 17
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 21cm. Find the angle

    Answer: 40.4°
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 6 blue and 4 green sections. Probability of landing on red?

    Answer: 3⁄13

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