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Cornerstone · Grades 3–5 Keystones #1 23 October 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 October 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 65 + 43

    Answer: 65 + 43 = 108
  2. 2. Algebra

    Find the next term: 19, 23, 27, 31, ...

    Answer: 35
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio

    Simplify: 12:12:8

    Answer: 3:3:2
  5. 5. Statistics

    What is the probability of rolling a 2 on a fair die?

    Answer: 1⁄6

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