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Lintel · Grades 5–7 Keystones #1 15 February 2025
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Keystones — Lintel

Five GCSE retrieval questions · 15 February 2025 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 83 + ? = 130

    Answer: 47
  2. 2. Algebra

    Solve: x5 = 2

    Answer: x = 10
  3. 3. Geometry

    Calculate the area of a circle with diameter 20cm

    Answer: 314.16cm²
  4. 4. Ratio

    Calculate 41.7% of 831

    Answer: 346.53
  5. 5. Statistics

    Calculate the mean of: 6, 36, 47, 33, 11, 26, 8, 40

    Answer: 25.9