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Cornerstone · Grades 3–5 Keystones #1 13 March 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 March 2023 · mathsvault.uk/keystones

  1. 1. Number

    650000

    Answer: 6.5 × 105
  2. 2. Algebra

    What is the next term? 8, 24, 72, 216, ...

    Answer: 648
  3. 3. Geometry

    Calculate the area of a circle with diameter 8cm

    Answer: 50.27cm²
  4. 4. Ratio

    Simplify the ratio 30:20

    Answer: 3:2
  5. 5. Statistics

    Find the mean of: 6, 7, 5

    Answer: 6

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