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10: 15 - 5, 18 - 8, 17 - 7 , 16 - 6 , 14 - 4 , 19 - 9, 20 - 10, 12 - 2, 20: 15 + 5, 14 + 6, 13 + 7, 17 + 3, 12 + 8, 11 + 9,

Zbrajanje i oduzimanje do 20 (1. dio)

by Marinaz

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