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Bedrock · Grades 1–3 Keystones #1 6 August 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 6 August 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 40 + 76

    Answer: 40 + 76 = 116
  2. 2. Algebra

    Factorise: 30x + 48

    Answer: 6(5x + 8)
  3. 3. Geometry

    Find the area of a circle with radius 10cm

    Answer: 314.16cm²
  4. 4. Ratio

    Simplify the ratio 15:12

    Answer: 5:4
  5. 5. Statistics

    Find the mean of: 15, 15, 7

    Answer: 12.333333333333

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