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Bedrock · Grades 1–3 Keystones #1 5 November 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 5 November 2021 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: 52 × 52

    Answer: 54
  2. 2. Algebra

    Factorise: 10x + 4

    Answer: 2(5x + 2)
  3. 3. Geometry

    Find the area of a right triangle with base 9cm and height 5cm

    Answer: 22.5cm²
  4. 4. Ratio

    Simplify the ratio 12:14

    Answer: 6:7
  5. 5. Statistics

    Find the mean of: 8, 16, 16, 20

    Answer: 15

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