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Lintel · Grades 5–7 Keystones #1 30 November 2025
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Keystones — Lintel

Five GCSE retrieval questions · 30 November 2025 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 70 + ? = 121

    Answer: 51
  2. 2. Algebra

    What is the next term? 3, 6, 12, 24, ...

    Answer: 48
  3. 3. Geometry

    Calculate the hypotenuse when a = 3cm and b = 9cm

    Answer: 9.49cm
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 3 red, 4 blue and 6 green sections. Probability of landing on red?

    Answer: 3⁄13

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