It looks as though you just added the leaves and ignored the stems. To find the original set of numbers from which this stem and leaf plot was created, combine each stem with each of its leaves. The stem will be the tens digit of the number and the leaf will be the ones digit. For example, the smallest number combines 0 and 3 to make 3, and the largest combines 3 and 6 to make 36. The correct answer is 321.