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Cornerstone · Grades 3–5 Keystones #1 18 December 2024
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 December 2024 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 886 + 449

    Answer: 886 + 449 = 1335
  2. 2. Algebra

    What is the next term? 6, 24, 96, 384, ...

    Answer: 1536
  3. 3. Geometry

    Calculate perimeter: two sides are 14cm and 13cm at right angles

    Answer: 46.cm
  4. 4. Ratio

    Calculate 25% of 46

    Answer: 11.5
  5. 5. Statistics

    A bag has 8 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 8⁄11

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