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Cornerstone · Grades 3–5 Keystones #1 6 June 2025
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 June 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 5⁄9 + 3⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Simplify: 7x + 4x

    Answer: 11x
  3. 3. Geometry

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify the ratio 6:24

    Answer: 1:4
  5. 5. Statistics

    Calculate the mean of: 26, 50, 18, 25, 19, 45, 31, 17

    Answer: 28.9

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