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Cornerstone · Grades 3–5 Keystones #1 14 December 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 December 2022 · mathsvault.uk/keystones

  1. 1. Number

    Add: 1⁄8 + 3⁄7

    Answer: 31⁄56
  2. 2. Algebra

    Solve: x + 5 = 11

    Answer: x = 6
  3. 3. Geometry

    Find the area of a circle with radius 4cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify the ratio 8:20

    Answer: 2:5
  5. 5. Statistics

    Calculate the mean of: 14, 48, 42, 26, 30, 22, 39

    Answer: 31.6

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