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Lintel · Grades 5–7 Keystones #1 9 January 2022
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Keystones — Lintel

Five GCSE retrieval questions · 9 January 2022 · mathsvault.uk/keystones

  1. 1. Number

    Add: 35 + 26

    Answer: 1415
  2. 2. Algebra

    Factorise fully: 28x² + 24x

    Answer: 4x(7x + 6)
  3. 3. Geometry

    Calculate the distance between (3, 6) and (6, 10)

    Answer: 5
  4. 4. Ratio

    Simplify the ratio 5m:500cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 13