“…cartoon energy and amusing visual asides, this story does for numbers what Laurie Keller did for states…” —Booklist

“This tale not only reinforces mathematical principles, but also has a great message about friendship and personal feelings. It can be read aloud, alone, or performed as reader's theater.” —School Library Journal

“Read this aloud to whet the new reader's appetite, but there is just so much to see that only a slow reading, with a magnifying glass in hand, will do.” —Horn Book Magazine

“…features walking, talking written characters (digits, in this case, rather than letters), accompanied by Lichtenheld's snappy, cartoon-style art.” —Publishers Weekly

“A hero and some villains and good winning over evil (oh, and all that educational stuff, too), all wrapped in humor and tied with a comic bow--what could be better?” —Kirkus Reviews