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Cornerstone · Grades 3–5 Keystones #1 22 July 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 July 2022 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: 43 × 43

    Answer: 46
  2. 2. Algebra

    Solve: x + 14 = 30

    Answer: x = 16
  3. 3. Geometry

    Calculate the area of a circle with diameter 11cm

    Answer: 95.03cm²
  4. 4. Ratio

    Simplify the ratio 40:20

    Answer: 2:1
  5. 5. Statistics

    Calculate the range of: 50, 66, 52, 30, 27, 46

    Answer: 39

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