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Find the Unknown Partner

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  • 2 + ____ = 10
    8
  • 5 + _____ = 10
    5
  • 3 + _____ = 9
    6
  • 5 + ____ = 7
    2
  • 8 + ____ = 9
    1
  • 7 + ____ = 9
    2
  • 2 + ______ = 7
    5
  • 6 + ____ = 9
    3
  • 3 + ____ = 7
    4
  • 3 + _____ = 10
    7
  • 2 + ______ = 6
    4
  • 4 + _____ = 9
    5
  • 4 + ______ = 10
    6
  • 4 + _____ = 7
    3