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Add 1 Subtract 1

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  • 7-1=
    6
  • 9+1=
    10
  • 10+1=
    11
  • 11-1=
    10
  • 8+1=
    9
  • 5-1=
    4
  • 6-1=
    5
  • 8-1=
    7
  • 1-1=
    0
  • 7+1=
    8
  • 3+1=
    4
  • 13-1=
    12
  • 14-1=
    13
  • 4-1=
    3
  • 5+1=
    6
  • 14+1=
    15
  • 3-1=
    2
  • 11+1=
    12
  • 2-1=
    1
  • 15-1=
    14
  • 0+1
    1
  • 1+1=
    2
  • 12-1=
    11
  • 2+1=
    3
  • 12+1=
    13
  • 13+1=
    14
  • 9-1=
    8
  • 6+1=
    7
  • 10-1=
    9
  • 4+1=
    5
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