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Lintel · Grades 5–7 Keystones #1 1 August 2023
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Keystones — Lintel

Five GCSE retrieval questions · 1 August 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 15 + 23 + 23

    Answer: 2315
  2. 2. Algebra

    Find the next term: 1, 4, 10, 19, ...

    Answer: 31
  3. 3. Geometry

    Calculate perimeter: two sides are 12cm and 12cm at right angles

    Answer: 41cm
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 12