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Subtraction to 20 with Missing Addend

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  • 16-_=11
    5
  • _-5=5
    10
  • 18-_=15
    3
  • 9-_=3
    6
  • _-6=6
    12
  • 18-_=9
    9
  • 14-_=10
    4
  • _-3=4
    7
  • 17-_=9
    8
  • 20-_=13
    7
  • _-2=13
    15
  • _-5=2
    7
  • 20-_=14
    6
  • 19-_=10
    9
  • 13-_=7
    6
  • 11-_=3
    8
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