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Subtraction (-1, -2)

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  • 8 - 1 =
    7
  • 2 - 2 =
    0
  • 5 - 2 =
    3
  • 4 - 2 =
    2
  • 9 - 2 =
    7
  • 5 - 1 =
    4
  • 15 - 1 =
    14
  • 7 - 1 =
    6
  • 7 - 2 =
    5
  • 6 - 2 =
    4
  • 8 - 2 =
    6
  • 12 - 2 =
    10
  • 4 - 1 =
    3
  • 2 - 1 =
    1
  • 11 - 2 =
    9
  • 10 - 1 =
    9
  • 9 - 1 =
    8
  • 1 - 1 =
    0
  • 12 - 1 =
    11
  • 10 - 2 =
    8
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