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

Adding within 20

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