EVA教学分数条小学数学分数问题演示器分数加减演示教具学生用
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EVA教学分数条小学数学分数问题演示器分数加减演示教具学生用
| 颜色(Color) | multi |
| 尺寸(Size) | max length piece 20.3cmx2.5cmx0.5cm |
| 材质(Material) | Paper |
| 年龄层(Age Level) | 4-7 |