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Cornerstone · Grades 3–5 Keystones #1 17 December 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 December 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 4⁄7 + 1⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Solve: x + 12 = 31

    Answer: x = 19
  3. 3. Geometry

    Opposite = 10cm, adjacent = 12cm. Calculate the angle

    Answer: 39.8°
  4. 4. Ratio

    Calculate 50% of 164

    Answer: 82
  5. 5. Statistics

    Calculate the mean of: 10, 35, 46, 46, 28, 26, 19, 44

    Answer: 31.8

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