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寒假期间,笔者给正在读小学四年级的儿子辅导作业,其中两道数学习题令人哭笑不得: 习题1 筑路队要修筑一条长80米、宽9米的公路,如果每天能筑8平方米,那么要修筑多少天才能完
During the winter vacation, the author gave guidance to the son who is studying in the fourth grade of primary school. Two of the mathematics exercises were dumbfounding: Problem 1 The road construction team needed to build a road 80 meters long and 9 meters wide. If it can build 8 square meters per day, How many days will it take to build?