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Cornerstone · Grades 3–5 Keystones #1 25 January 2025
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 January 2025 · mathsvault.uk/keystones

  1. 1. Number

    Add: 5⁄7 + 1⁄4

    Answer: 27⁄28
  2. 2. Algebra

    What is the next term? 3, 9, 27, 81, ...

    Answer: 243
  3. 3. Geometry

    Opposite = 20cm, adjacent = 14cm. Calculate the angle

    Answer: 55°
  4. 4. Ratio

    Simplify the ratio 30:35

    Answer: 6:7
  5. 5. Statistics

    Calculate the range of: 97, 66, 21, 37, 85, 66

    Answer: 76

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