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Bedrock · Grades 1–3 Keystones #1 23 October 2025
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Keystones — Bedrock

Five GCSE retrieval questions · 23 October 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 27 + 48

    Answer: 27 + 48 = 75
  2. 2. Algebra

    Simplify: 5x + 6x

    Answer: 11x
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 30cm. Find the angle

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

    Simplify the ratio 4:16

    Answer: 1:4
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 1⁄2

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