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Bedrock · Grades 1–3 Keystones #1 13 October 2025
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Keystones — Bedrock

Five GCSE retrieval questions · 13 October 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 4⁄9 + 4⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Factorise: 18x + 21

    Answer: 3(6x + 7)
  3. 3. Geometry

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify the ratio 28:8

    Answer: 7:2
  5. 5. Statistics

    Find the range of: 5, 17, 25, 21, 25

    Answer: 20

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