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Cornerstone · Grades 3–5 Keystones #1 24 April 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 April 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 31 + 26

    Answer: 31 + 26 = 57
  2. 2. Algebra

    Solve: 8x - 8 = 6x + 8

    Answer: x = 8
  3. 3. Geometry

    Find the distance between (4, 1) and (9, 7)

    Answer: 7.81
  4. 4. Ratio

    Simplify: 10:6:4

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

    What is the probability of rolling a 1 on a fair die?

    Answer: 1⁄6

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