"Mrs. Hall's desk is overflowing with new pencils! But why are there so many? Be a math detective along with the kids at Lincoln Elementary and help solve this pick-your-own-path mystery. Use your math skills and knowledge of place value to solve the case"--
Ages 6-9. Amicus.|||Grades 2-3. Amicus.|||juvenile
by Thomas K. and Heather Adamson ; illustrated by Charlie Alder.