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Lintel · Grades 5–7 Keystones #1 13 October 2021
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Keystones — Lintel

Five GCSE retrieval questions · 13 October 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 46 + 12 + 12

    Answer: 53
  2. 2. Algebra

    Factorise: 8x² + 7x

    Answer: x(8x + 7)
  3. 3. Geometry

    Opposite = 10cm, adjacent = 13cm. Calculate the angle

    Answer: 37.6°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    Find the range of: 18, 32, 16, 31, -17

    Answer: 49