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0 - 3 + ? = 3, 7 - ? + 11 = 18, 8 - ? + 7 = 15, 1 - ? + 3 = 4, 4 - ? + 6 = 10, 3 - ? + 16 = 19, 2 - 4 + ? = 6, 11 - 9 + ? = 20, 9 - ? + 5 = 14, 5 - 2 + ? = 7,

Zbrajanje do 20 (1.r)

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