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Lintel · Grades 5–7 Keystones #12 27 June 2026
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Keystones — Lintel

Five GCSE retrieval questions · 27 June 2026 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 644 + 430

    Answer: 644 + 430 = 1074
  2. 2. Algebra

    Solve: 7x - 8 = 5x + 12

    Answer: x = 10
  3. 3. Geometry

    Calculate perimeter: two sides are 15cm and 10cm at right angles

    Answer: 43cm
  4. 4. Ratio

    Find 37% of 483

    Answer: 178.71
  5. 5. Statistics

    Calculate the mean of: 28, 49, 23, 34, 20, 39, 47, 30

    Answer: 33.8