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Lintel · Grades 5–7 Keystones #1 23 June 2021
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Keystones — Lintel

Five GCSE retrieval questions · 23 June 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 12 + 12 + 24

    Answer: 32
  2. 2. Algebra

    Factorise fully: 21x² + 9x

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

    Find the distance between (-1, 0) and (6, 4)

    Answer: 8.06
  4. 4. Ratio

    Calculate 37.7% of 635

    Answer: 239.4
  5. 5. Statistics

    A spinner has 2 red, 3 blue and 3 green sections. Probability of landing on red?

    Answer: 14