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Cornerstone · Grades 3–5 Keystones #1 28 October 2025
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 October 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 3⁄9 + 5⁄9

    Answer: 8⁄9
  2. 2. Algebra

    Solve: 6x = 84

    Answer: x = 14
  3. 3. Geometry

    Opposite = 15cm, hypotenuse = 17.3cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Find 47% of 189

    Answer: 88.83
  5. 5. Statistics

    Find the range of: 14, 22, 30, 17, 44

    Answer: 30

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