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Cornerstone · Grades 3–5 Keystones #1 6 June 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 June 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 5⁄12 + 5⁄12

    Answer: 5⁄6
  2. 2. Algebra

    Collect like terms: 8x + 7y + 8x + 7y

    Answer: 16x + 14y
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Simplify the ratio 40:35

    Answer: 8:7
  5. 5. Statistics

    Calculate the mean of: 24, 30, 9, 13, 38, 20, 23, 18

    Answer: 21.9

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