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Bedrock · Grades 1–3 Keystones #1 11 December 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 11 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: x + 12 = 27

    Answer: x = 15
  3. 3. Geometry

    Find the area of a circle with radius 10cm

    Answer: 314.16cm²
  4. 4. Ratio

    Simplify the ratio 21:15

    Answer: 7:5
  5. 5. Statistics

    Find the mean of: 16, 20, 2, 5, 16

    Answer: 11.8

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