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Cornerstone · Grades 3–5 Keystones #1 17 July 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 July 2021 · mathsvault.uk/keystones

  1. 1. Number

    Add: 1⁄4 + 1⁄3

    Answer: 7⁄12
  2. 2. Algebra

    Solve: x + 13 = 32

    Answer: x = 19
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 26cm. Find the angle

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

    Simplify: 6:8:10

    Answer: 3:4:5
  5. 5. Statistics

    Calculate the range of: 88, 70, 47, 75, 84, 67

    Answer: 41

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