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Cornerstone · Grades 3–5 Keystones #1 24 March 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 March 2022 · mathsvault.uk/keystones

  1. 1. Number

    3000

    Answer: 3 × 103
  2. 2. Algebra

    Solve: x + 11 = 18

    Answer: x = 7
  3. 3. Geometry

    Calculate the area of a circle with diameter 22cm

    Answer: 380.13cm²
  4. 4. Ratio

    Simplify the ratio 14:4

    Answer: 7:2
  5. 5. Statistics

    Find the mean of: 17, 3, 20

    Answer: 13.333333333333

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