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Lintel · Grades 5–7 Keystones #1 8 September 2025
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Keystones — Lintel

Five GCSE retrieval questions · 8 September 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 46 + 13 + 34

    Answer: 74
  2. 2. Algebra

    Solve: 2x = 22

    Answer: x = 11
  3. 3. Geometry

    A circle has area 314.2cm². Find its radius (dp)

    Answer: 10cm
  4. 4. Ratio

    Simplify the ratio 6m:600cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 8 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 811