烙饼数学问题：聪聪用平底锅烙饼,每次同时放4个饼,两面都烙,每面要2分钟,聪聪6分钟能烙6个饼，你知道他是怎么样烙的吗？

由比鲁斯同学进行数学题解答：可以这样烙，分三次完成，每次2分钟。

第一个2分钟：①正，②正，③正，④正

第二个2分钟：⑤正，⑥正，①反，②反（①和②烙好了）

第三个2分钟：③反，④反，⑤反，⑥反（③，④，⑤，⑥也烙好了）

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