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

Making Teen Numbers

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