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Bedrock · Grades 1–3 Keystones #1 14 October 2025
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Keystones — Bedrock

Five GCSE retrieval questions · 14 October 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Find the next term: 25, 27, 29, 31, ...

    Answer: 33
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 20cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Calculate 10% of 199

    Answer: 19.9
  5. 5. Statistics

    Find the mean of: 5, 15, 8, 4, 4

    Answer: 7.2

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