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Cornerstone · Grades 3–5 Keystones #75 16 March 2026
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 March 2026 · mathsvault.uk/keystones

  1. 1. Number

    Add: 1⁄3 + 4⁄8

    Answer: 5⁄6
  2. 2. Algebra

    Solve: 9x = 108

    Answer: x = 12
  3. 3. Geometry

    Find the perimeter of a right triangle with sides 6cm and 8cm

    Answer: 24cm
  4. 4. Ratio

    Calculate 25% of 184

    Answer: 46
  5. 5. Statistics

    Calculate the range of: 47, 59, 96, 78, 46, 96

    Answer: 50

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