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Bedrock · Grades 1–3 Keystones #1 26 September 2025
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Keystones — Bedrock

Five GCSE retrieval questions · 26 September 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 35 + 15

    Answer: 45
  2. 2. Algebra

    Factorise: 21x + 12

    Answer: 3(7x + 4)
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 11.5cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Calculate 10% of 69

    Answer: 6.9
  5. 5. Statistics

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

    Answer: 12