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Addition Problems Within 20

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