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Cornerstone · Grades 3–5 Keystones #1 7 December 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 7 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 2⁄8 + 3⁄8

    Answer: 5⁄8
  2. 2. Algebra

    Expand: 6(5x + 8)

    Answer: 30x + 48
  3. 3. Geometry

    Opposite = 6cm, hypotenuse = 6.9cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Simplify the ratio 16:24

    Answer: 2:3
  5. 5. Statistics

    Find the mean of: 4, 14, 7

    Answer: 8.3333333333333

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