1 + 2 = ?, 4, 3, 2, 6, 3 + 1 = ?, 3, 5, 4, 2, 2 + 2 = ?, 3, 2, 4, 5, 7+3=?, 10, 11, 9, 8, 6+ 3 = ?, 10, 11, 12, 9, 10+1=?, 11, 12, 2, 13, 11+2=?, 12, 13, 14, 11, 8+2=?, 9, 12, 11, 10, 2+10=?, 12, 9, 13, 14, 10+4=?, 11, 12, 13, 14.

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