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Cornerstone · Grades 3–5 Keystones #1 30 May 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 May 2023 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: 55 × 54

    Answer: 59
  2. 2. Algebra

    Solve: 6x = 72

    Answer: x = 12
  3. 3. Geometry

    Find the area of a circle with radius 10cm

    Answer: 314.16cm²
  4. 4. Ratio

    Find 21% of 61

    Answer: 12.81
  5. 5. Statistics

    Find the range of: 35, 45, 29, 37, 17

    Answer: 28

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