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Bedrock · Grades 1–3 Keystones #1 26 December 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 26 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Factorise: 25x + 40

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

    Find the area of a right triangle with base 5cm and height 5cm

    Answer: 12.5cm²
  4. 4. Ratio

    Simplify the ratio 8:28

    Answer: 2:7
  5. 5. Statistics

    Find the median of: 13, 18, 11, 16, 5

    Answer: 13

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