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Add and subtract 30

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  • 16+10=
    26
  • 10+3=
    13
  • 30-11=
    19
  • 27-8=
    19
  • 15+10=
    25
  • 19-6=
    13
  • 19+7=
    26
  • 28-6=
    22
  • 15+5=
    20
  • 20-7=
    13
  • 27+3=
    30
  • 18+7=
    25
  • 16+8=
    24
  • 30-9=
    21
  • 12+9=
    21
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