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Bedrock · Grades 1–3 Keystones #1 2 June 2023
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Keystones — Bedrock

Five GCSE retrieval questions · 2 June 2023 · mathsvault.uk/keystones

  1. 1. Number

    30000

    Answer: 3 × 104
  2. 2. Algebra

    Factorise: 30x + 25

    Answer: 5(6x + 5)
  3. 3. Geometry

    Find the area of a circle with radius 10cm

    Answer: 314.16cm²
  4. 4. Ratio

    Simplify the ratio 16:20

    Answer: 4:5
  5. 5. Statistics

    Find the mean of: 10, 8, 20, 9

    Answer: 11.75