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Cornerstone · Grades 3–5 Keystones #1 9 March 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 March 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra

    Expand: 3(2x + 6)

    Answer: 6x + 18
  3. 3. Geometry

    Calculate the area of a circle with diameter 13cm

    Answer: 132.73cm²
  4. 4. Ratio

    Simplify the ratio 35:10

    Answer: 7:2
  5. 5. Statistics

    Find the range of: 29, 43, 16, 34, 15

    Answer: 28

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