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Lintel · Grades 5–7 Keystones #1 20 May 2021
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Keystones — Lintel

Five GCSE retrieval questions · 20 May 2021 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 87 + ? = 123

    Answer: 36
  2. 2. Algebra

    Solve: x⁄4 = 8

    Answer: x = 32
  3. 3. Geometry

    Adjacent = 24cm, hypotenuse = 33cm. Find the angle

    Answer: 43.3°
  4. 4. Ratio

    Simplify: 18:15:18

    Answer: 6:5:6
  5. 5. Statistics

    Find the range of: 22, 1, -15, -22, -27

    Answer: 49

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