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Cornerstone · Grades 3–5 Keystones #1 13 August 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 August 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 54 + 36

    Answer: 54 + 36 = 90
  2. 2. Algebra

    Solve: x + 5 = 12

    Answer: x = 7
  3. 3. Geometry

    Find the distance between (1, 5) and (5, 11)

    Answer: 7.21
  4. 4. Ratio

    Simplify: 9:15:15

    Answer: 3:5:5
  5. 5. Statistics

    Calculate the mean of: 20, 15, 28, 12, 38, 26, 9

    Answer: 21.1

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