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Lintel · Grades 5–7 Keystones #1 21 April 2023
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Keystones — Lintel

Five GCSE retrieval questions · 21 April 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 12 + 46 + 15

    Answer: 4130
  2. 2. Algebra

    Solve: x2 = 19

    Answer: x = 38
  3. 3. Geometry

    Find perimeter: adjacent = 23cm, angle = 52°

    Answer: 89.8cm
  4. 4. Ratio

    Simplify: 12:12:10

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

    Find the range of: -3, 29, 29, -7, -25

    Answer: 54