小朋友,你已经学会了用一根线段来表示部分与总体的数量关系,但是,是不是所有的数量都能用一根线段来表示呢?要了解其中的奥秘,你只要通过今天的学习就能知道了,想不想学呢?一、学一学1.白猫有5只,花猫有8只。花猫比白猫多几只?这样想:白猫的只数和花猫的只数是两个不同的数量, Children, you have learned to use a line segment to represent the relationship between the part and the overall quantity, but is not all the numbers can be expressed by a line segment? To understand the mystery, you can only through today’s learning can Know, do you want to learn? First, learn a school 1. There are five white cats, cats have eight. How many cats are white cats than white cats? Think so: The number of white cats and the number of cats are two different numbers,