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Addition and Subtraction

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  • 61 - 9
    52
  • 66 + 33
    99
  • 48 + 37
    85
  • 78 + 26
    104
  • 71 - 35
    36
  • 39 + 29
    68
  • 67 + 12
    79
  • 31 + 26
    57
  • 42 - 8
    34
  • 18 - 9
    9
  • 99 - 34
    65
  • 84 - 23
    61
  • 60 - 35
    25
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