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Bedrock · Grades 1–3 Keystones #1 27 December 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 27 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 2⁄7 + 4⁄7

    Answer: 6⁄7
  2. 2. Algebra

    Factorise: 12x + 14

    Answer: 2(6x + 7)
  3. 3. Geometry

    Opposite = 14cm, hypotenuse = 28cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 16:20

    Answer: 4:5
  5. 5. Statistics

    Find the mean of: 9, 5, 12

    Answer: 8.6666666666667

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