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Cornerstone · Grades 3–5 Keystones #1 4 November 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 November 2022 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: 24 × 25

    Answer: 29
  2. 2. Algebra

    Solve: 2x = 30

    Answer: x = 15
  3. 3. Geometry

    Calculate the distance between (5, 6) and (8, 10)

    Answer: 5
  4. 4. Ratio

    Simplify the ratio 30:15

    Answer: 2:1
  5. 5. Statistics

    Calculate the mean of: 49, 38, 22, 36, 23, 43

    Answer: 35.2