被油漆过的小正方体有多少个?(六上)
- 时间:2020-04-19 17:13:52
- 分类:数学世界
- 阅读:140 次
一千个体积为1立方厘米的小正方体合在一起成为一个边长为10厘米的大正方体,大正方体表面涂油漆后再分开为原来的小正方体,这些小正方体至少有一面被油漆涂过的数目是多少个?
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