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Lintel · Grades 5–7 Keystones #1 6 December 2025
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Keystones — Lintel

Five GCSE retrieval questions · 6 December 2025 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 126. What are the numbers?

    Answer: 41, 42, and 43
  2. 2. Algebra

    Solve: 3x = 24

    Answer: x = 8
  3. 3. Geometry

    Opposite = 11cm, adjacent = 16cm. Calculate the angle

    Answer: 34.5°
  4. 4. Ratio

    Simplify: 18:6:6

    Answer: 3:1:1
  5. 5. Statistics

    Calculate the mean of: 17, 37, 34, 5, 46, 12

    Answer: 25.2