Line up five children by height, and a six-year-old will sort them in seconds. Put five numbers like 12, 6, 35, 20 and 17 on paper, and the same child may freeze. The idea is the same, only the objects are harder to see. This 1st grade least to greatest worksheet offers eleven boxes. Each holds five numbers up to 99 and one question, such as which number would come second from least to greatest, or which would come last from greatest to least. Your child colors the answer right in the row. The numbers are not rewritten in order, so the ranking happens in your child’s head or on scrap paper. A second page gives the answer key.