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obliczenia w zakresie 15

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  • 10 + 4
    14
  • 5 + 5 + 3
    13
  • 2 + 2 + 1 + 3
    8
  • 12 - 2
    10
  • 10 + 2
    12
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    3
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    5
  • 7 + 3
    10
  • 11 - 1
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    10
  • 10 + 5
    15
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