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Cornerstone · Grades 3–5 Keystones #1 12 June 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 June 2021 · mathsvault.uk/keystones

  1. 1. Number

    Add: 3⁄4 + 2⁄3

    Answer: 17⁄12
  2. 2. Algebra

    Find the next term: 10, 19, 28, 37, ...

    Answer: 46
  3. 3. Geometry

    Opposite = 10cm, hypotenuse = 14.cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Find 26% of 325

    Answer: 84.5
  5. 5. Statistics

    Calculate the mean of: 45, 43, 15, 21, 38, 8, 50, 22

    Answer: 30.3

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