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Cornerstone · Grades 3–5 Keystones #1 12 March 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 March 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 3⁄7 + 2⁄7

    Answer: 5⁄7
  2. 2. Algebra

    Simplify: 4x + 6x

    Answer: 10x
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 18cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 15:12

    Answer: 5:4
  5. 5. Statistics

    Calculate the mean of: 28, 49, 29, 43, 24, 37

    Answer: 35

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