Subtraction < 100

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  • 89-13
    76
  • 68-35
    33
  • 86-44
    42
  • 13-11
    2
  • 23-3
    20
  • 71-9
    62
  • 45-7
    38
  • 10-7
    3
  • 46-18
    28
  • 15-6
    9