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Dodawanie w zakresie do 20

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  • 9+4
    13
  • 6+6
    12
  • 2+2
    4
  • 11+9
    20
  • 6+9
    15
  • 5+8
    13
  • 7+8
    15
  • 5+6
    11
  • 4+4
    8
  • 8+3
    11
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