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Cornerstone · Grades 3–5 Keystones #1 16 October 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 October 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 96 + 44

    Answer: 96 + 44 = 140
  2. 2. Algebra

    Find the next term: 14, 21, 28, 35, ...

    Answer: 42
  3. 3. Geometry

    Find the area of a circle with radius 7cm

    Answer: 153.94cm²
  4. 4. Ratio

    Simplify: 6:15:12

    Answer: 2:5:4
  5. 5. Statistics

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

    Answer: 1⁄2

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