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Addition with regrouping

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  • 17 + 18
    35
  • 8 + 18
    26
  • 26 + 14
    40
  • 27 + 16
    43
  • 29 + 11
    40
  • 9 + 25
    34
  • 14 + 16
    30
  • 24 + 17
    41
  • 6 + 19
    25
  • 18 + 23
    42
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