Less Than Zero by HarperTrophy
Other products by HarperTrophy
Item #: 9780060001261
Reg. Price: $6.99
Our Price: $5.39


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.


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