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Adding three 1-digit numbers

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  • 5 + 3 + 1
    9
  • 3 + 8 + 5
    16
  • 1 + 9 + 5
    15
  • 4 + 2 + 3
    9
  • 5 + 5 + 5 + 5
    20
  • 3 + 5 + 3
    11
  • 2 + 4 + 3 + 1 + 3
    13
  • 2 + 4 + 3 + 2
    11
  • 9 + 2 + 1
    12
  • 2 + 8 + 7
    17
  • 2 + 5 + 8
    15
  • 1 + 2 + 7
    10
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