Addition

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  • 1+1=
    2
  • 2+1=
    3
  • 3+1=
    4
  • 6+1=
    7
  • 8+1=
    9
  • 4+1=
    5
  • 7+1=
    8
  • 5+1=
    6
  • 10+1=
    11
  • 9+1=
    10