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Cornerstone · Grades 3–5 Keystones #74 15 March 2026
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 March 2026 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 45 + 66

    Answer: 45 + 66 = 111
  2. 2. Algebra

    Solve: 5x = 45

    Answer: x = 9
  3. 3. Geometry

    Opposite = 15cm, adjacent = 11cm. Calculate the angle

    Answer: 53.7°
  4. 4. Ratio

    Simplify the ratio 40:30

    Answer: 4:3
  5. 5. Statistics

    Calculate the range of: 62, 39, 91, 70, 83, 40

    Answer: 52