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Cornerstone · Grades 3–5 Keystones #1 10 August 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 August 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra

    Solve: x + 13 = 33

    Answer: x = 20
  3. 3. Geometry

    Opposite = 11cm, adjacent = 13cm. Calculate the angle

    Answer: 40.2°
  4. 4. Ratio

    Find 26% of 121

    Answer: 31.46
  5. 5. Statistics

    Calculate the mean of: 40, 46, 37, 12, 33, 23, 22

    Answer: 30.4

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