0 + 9 =, 9, 1 + 9 =, 10, 2 + 9 = , 11, 3 + 9 = , 12, 4 + 9 =, 13, 5 + 9 =, 14, 6 + 9 = , 15, 7 + 9 =, 16, 8 + 9 =, 17, 9 + 9 =, 18, 10 + 9 = , 19, 11 + 9 =, 20, 12 + 9 =, 21.

+ 9

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