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| Plus 1, Minus 1 | |
| 作者: | Ann Matzke |
| 出版社: | Britannica Digital Learning |
| 組合: | Read and Discover Series (Kindergarten)_IV |
| 簡介: | This math concept book engages young readers through simple text and photos as they learn how groups change when you add 1 or take away 1. |
| 標籤: | 數學, 英文 |
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