发表于2024-12-04
Less Than Zero 2024 pdf epub mobi 电子书
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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.
Less Than Zero 2024 pdf epub mobi 电子书