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numbers, before and after

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  • What come after 19?
    20
  • What comes before 15?
    14
  • What number comes after 2?
    3
  • What number comes after 7?
    8
  • What comes before 16?
    15
  • What number comes before 14?
    13
  • What number comes before 19?
    18
  • What comes before 10?
    9
  • What comes after the number 4?
    5
  • What number comes before 13?
    12
  • What comes before 13?
    12
  • What number comes before 6?
    5
  • What number comes before 2?
    1
  • What comes before 20?
    19
  • What number comes before 17?
    16