Question

6．“柳樹(shù)120棵，楊樹(shù)比柳樹(shù)多$\frac{2}{5}$”這里是把柳樹(shù)的棵數(shù)看作單位“1”，要求楊樹(shù)比柳樹(shù)多多少棵，也就是求柳樹(shù)的$\frac{2}{5}$是多少棵．?dāng)?shù)量關(guān)系式是：柳樹(shù)的棵數(shù)×$\frac{2}{5}$=楊樹(shù)比柳樹(shù)多的棵數(shù)．

Answer 1

分析 楊樹(shù)比柳樹(shù)多$\frac{2}{5}$，“比”字的后面是“柳樹(shù)”，所以是把柳樹(shù)的棵數(shù)看成單位“1”，柳樹(shù)的棵樹(shù)乘上$\frac{2}{5}$也就是 楊樹(shù)比柳樹(shù)多的棵數(shù)，由此求解．

解答 解：“柳樹(shù)120棵，楊樹(shù)比柳樹(shù)多$\frac{2}{5}$”這里是把 柳樹(shù)的棵數(shù)看作單位“1”，
要求楊樹(shù)比柳樹(shù)多多少棵，也就是求 柳樹(shù)的$\frac{2}{5}$是多少棵．
數(shù)量關(guān)系式是：柳樹(shù)的棵數(shù)×$\frac{2}{5}$=楊樹(shù)比柳樹(shù)多的棵數(shù)．
故答案為：柳樹(shù)的棵數(shù)，柳樹(shù)，柳樹(shù)，楊樹(shù)比柳樹(shù)多．

點(diǎn)評(píng) 判斷單位“1”的方法：一般是把“比、占、是、相當(dāng)于”后面的量看作單位“1”，即分?jǐn)?shù)“的”字前面的量看作單位“1”．