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

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

  1. 1. Number

    Calculate: 4⁄9 + 2⁄9

    Answer: 2⁄3
  2. 2. Algebra

    Factorise: 6x + 8

    Answer: 2(3x + 4)
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 16cm. Find the angle

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

    Simplify the ratio 6:14

    Answer: 3:7
  5. 5. Statistics

    Find the mean of: 5, 14, 5, 17, 2

    Answer: 8.6

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