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.
發表於2024-12-05
Less Than Zero 2024 pdf epub mobi 電子書 下載
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Less Than Zero 2024 pdf epub mobi 電子書 下載