"Betcha! Estimating (Mathstart, Level 3)"
"What do cars, toys, people, and jelly beans have in common? They can all be estimated. Two friends try out their estimating skills and find out that estimating can have real rewards--especially when there's a contest to enter! "
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| 格式: | 圖書 |
| 語言: | Undetermined |
| 出版: |
HarperCollins
1997
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