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Cornerstone · Grades 3–5 Keystones #1 5 November 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 November 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 78 + 60

    Answer: 78 + 60 = 138
  2. 2. Algebra

    Solve: 5x + 7 = 3x + 13

    Answer: x = 3
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio

    Simplify the ratio 24:32

    Answer: 3:4
  5. 5. Statistics

    What is the probability of rolling a 3 on a fair die?

    Answer: 1⁄6

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