9 + 0 =, 8, 9, 11, 16, 1 + 0 =, 1, 2, 3, 7, 1 + 15 =, 13, 16, 19, 20, 8 + 3 =, 6, 11, 14, 15, 1 + 10 =, 7, 11, 13, 14, 8 + 1 =, 4, 9, 10, 12, 1 + 7 =, 5, 7, 8, 9, 12 + 5 =, 16, 17, 18, 19, 2 + 4 =, 6, 7, 8, 16, 1 + 3 =, 4, 5, 11, 12, 2 + 1 =, 2, 3, 6, 7, 9 + 2 =, 9, 11, 12, 14, 2 + 5 =, 6, 7, 8, 11, 10 + 2 =, 9, 10, 12, 19, 3 + 7 =, 9, 10, 11, 13

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Tauler de classificació

Estil visual

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Canvia de fonament

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