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Capstone · Grades 7–9 Keystones #1 30 January 2025
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Keystones — Capstone

Five GCSE retrieval questions · 30 January 2025 · 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⁄5 = 1.8

    Answer: x = 9
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 37cm. Find the angle

    Answer: 49.6°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 1⁄2

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