“Gracefully illustrated….This original story set in fifteenth-century China will captivate readers and perhaps teach them a little about mathematics.”
—Booklist
“Clever and quietly told in simple, yet evocative language.”
—Kirkus Reviews
“Any young reader (with calculator handy) will enjoy the tale.”
—Scientific American
“[A] book that is wise and humorous, and one to be perused and savored.”
—School Library Journal