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Regrouping with addition and subtraction

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  • 50-31=
    19
  • 85-46=
    39
  • 25+34=
    59
  • 67+17=
    84
  • 37-18=
    19
  • 33-26=
    7
  • 22+28=
    50
  • 62+28=
    90
  • 62-33
    29
  • 43-15=
    28
  • 40-33=
    7
  • 63+29=
    92
  • 35+26=
    61
  • 63-24=
    39
  • 15+18=
    33
  • 15+28=
    43
  • 32-24=
    8
  • 56-31=
    25
  • 56+24=
    80
  • 15+15=
    30
  • 52+31=
    83
  • 70-11=
    59
  • 43+49=
    92
  • 67-28=
    39
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