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Lintel · Grades 5–7 Keystones #1 23 September 2022
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Keystones — Lintel

Five GCSE retrieval questions · 23 September 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 2⁄4 + 1⁄2 + 3⁄5

    Answer: 8⁄5
  2. 2. Algebra

    Factorise fully: 20x² + 8x

    Answer: 4x(5x + 2)
  3. 3. Geometry

    Opposite = 11cm, adjacent = 14cm. Calculate the angle

    Answer: 38.2°
  4. 4. Ratio

    Simplify: 10:4:10

    Answer: 5:2:5
  5. 5. Statistics

    Calculate the mean of: 18, 36, 6, 30, 19, 16, 24, 5

    Answer: 19.3

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