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Lintel · Grades 5–7 Keystones #1 17 July 2021
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Keystones — Lintel

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

  1. 1. Number

    What is the missing number: 64 + ? = 101

    Answer: 37
  2. 2. Algebra

    Solve: x3 = 7.3333333333333

    Answer: x = 22
  3. 3. Geometry

    Calculate the perimeter of a right triangle with sides 11cm and 10cm

    Answer: 35.9cm
  4. 4. Ratio

    Simplify: 4:12:6

    Answer: 2:6:3
  5. 5. Statistics

    Find the range of: -13, 46, 44, -5, 41

    Answer: 59