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Cornerstone · Grades 3–5 Keystones #1 15 August 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 August 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 32 + 96

    Answer: 32 + 96 = 128
  2. 2. Algebra

    What is the next term? 8, 32, 128, 512, ...

    Answer: 2048
  3. 3. Geometry

    Calculate the distance between (3, 5) and (6, 9)

    Answer: 5
  4. 4. Ratio

    Simplify the ratio 21:12

    Answer: 7:4
  5. 5. Statistics

    A bag has 6 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 3⁄7

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