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Subtraction

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  •  0     0     0

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  • 10-4=
    6
  • 13-7=
    6
  • 5-5=
    0
  • 15-5=
    10
  • 8-4=
    4
  • 5-4=
    1
  • 12-4=
    8
  • 7-4=
    3
  • 12-8=
    4
  • 10-8=
    2
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