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Lintel · Grades 5–7 Keystones #1 15 December 2025
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Keystones — Lintel

Five GCSE retrieval questions · 15 December 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 4⁄6 + 1⁄5 + 4⁄6

    Answer: 23⁄15
  2. 2. Algebra

    Factorise fully: 16x² + 24x

    Answer: 4x(4x + 6)
  3. 3. Geometry

    Adjacent = 16cm, hypotenuse = 32cm. Find the angle

    Answer: 60°
  4. 4. Ratio

    Calculate 35.2% of 953

    Answer: 335.46
  5. 5. Statistics

    A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 1⁄3

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