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Missing Numbers in Addition

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  • 4+4+4=
    12
  • 6+6=
    12
  • 8 - __ = 4
    4
  • 13+ ___ = 16
    3
  • 5+5+5=
    15
  • 4+_ = 5
    1
  • 5+__ = 9
    4
  • 5 - ___ = 3
    2
  • 18 - ___ = 9
    9
  • 15 + ___ = 20
    5
  • 13-2=
    11
  • 12 - __ = 10
    2
  • 10+10=
    20
  • 9+9=
    18
  • 3+ __ = 10
    7
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