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  • 9____ 9 = 18
    +
  • 7___ 3= 10
    +
  • 8____ 4 = 12
    +
  • 4 ___ 4=0
    -
  • 2___ 4= 6
    +
  • 9__ 3= 6
    -
  • 9 __ 2 = 11
    +
  • 7 ____ 7 = 14
    +
  • 6___ 2= 4
    -
  • 8____ 6 =2
    -
  • 5 ___ 4= 9
    +
  • 2 _ 6= 8
    +
  • 5 _____ 4 = 1
    -
  • 8 ____ 4 = 4
    -
  • 6___ 6= 12
    +
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