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  • 19 + 11 =
    30
  • 10 + 9 =
    19
  • 2 + 5 = 
    7
  • 11 + 7 =
    18
  • 5 + 4 =
    9
  • 30 + 10 = 
    40
  • 0 + 0 =
    0
  • 10 + 10 =
    20
  • 20 + 10 =
    30
  • 15 + 5 =
    20
  • 15 + 15 =
    30
  • 5 + 5 =
    10
  • 10 + 5 = 
    15
  • 3 + 12 =
    15
  • 12 + 12 =
    24
  • 9 + 5 =
    14
  • 4 + 7 =
    11
  • 14 + 3 =
    17
  • 9 + 1 =
    10
  • 7 + 0 =
    7
  • 1 + 5 =
    6
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