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

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

  1. 1. Number

    Add: 5⁄6 + 7⁄8

    Answer: 41⁄24
  2. 2. Algebra

    Simplify: 7x + 3x

    Answer: 10x
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

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

    Simplify the ratio 25:20

    Answer: 5:4
  5. 5. Statistics

    Calculate the range of: 51, 77, 68, 59, 89, 34

    Answer: 55

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