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Cornerstone · Grades 3–5 Keystones #1 12 February 2025
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 February 2025 · mathsvault.uk/keystones

  1. 1. Number

    Add: 1⁄6 + 4⁄7

    Answer: 31⁄42
  2. 2. Algebra

    Simplify: 7x + 7x

    Answer: 14x
  3. 3. Geometry

    Find the area of a circle with radius 8cm

    Answer: 201.06cm²
  4. 4. Ratio

    Find 48% of 210

    Answer: 100.8
  5. 5. Statistics

    Calculate the mean of: 16, 47, 13, 44, 36, 24

    Answer: 30

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