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Lintel · Grades 5–7 Keystones #55 9 August 2026
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Keystones — Lintel

Five GCSE retrieval questions · 9 August 2026 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 4⁄6 + 2⁄3 + 3⁄5

    Answer: 29⁄15
  2. 2. Algebra

    Factorise: 7x² + 7x

    Answer: 7x(x + 1)
  3. 3. Geometry

    Adjacent = 23cm, hypotenuse = 29cm. Find the angle

    Answer: 37.5°
  4. 4. Ratio

    Calculate 22.2% of 868

    Answer: 192.7
  5. 5. Statistics

    Calculate the mean of: 5, 18, 18, 28, 28, 6, 18

    Answer: 17.3

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