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2 Digit Addition w/ Regrouping

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  • 10 + 21 =
    31
  • 30 + 10 =
    40
  • 17 + 5 =
    22
  • 16 + 12 =
    28
  • 27 + 9 =
    36
  • 12 + 15 =
    27
  • 15 + 15 =
    30
  • 21 + 9 =
    30
  • 19 + 13 =
    32
  • 11 + 24 =
    35
  • 18 + 3 =
    21
  • 28 + 9 =
    37
  • 19 + 11 =
    30
  • 26 + 10 =
    26
  • 17 + 14 =
    31
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