Description or summary of the book: Perry the Penguin needs 9 clams to buy an ice scooter - but he's not very good at saving. As Perry earns, spends, finds, loses, and borrows clams, a simple line graph demonstrates the concept of negative numbers.
Estimated reading time (average reader): 2H1M19S
Other categories, genre or collection: Contemporary Fiction, Mathematics, Early Learning, Picture Books, Numbers & Counting, Mathematics & Numeracy
Available formats: EPUB, WORD, DOCX, HTMLZ, DOC, PRC, PDF, TXT. Compressed in ZIP, RAR, TAR, CBR, RZ, Z