What is different between whole number and cardinal number?

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/19 04:24:57

What is different between whole number and cardinal number?
whole number 指的是整数
cardinal number 指的是基数
整数和基数的区别是什么呢.
7.5是分数那么7 1/2是什么呢...（有区别吗）

whole number 指的是整数又叫自然数
自然数是整数,但整数不全是自然数.
基数理论则把自然数定义为有限集的基数,这种理论提出,两个可以在元素之间建立一一对应关系的有限集具有共同的数量特征,这一特征叫做基数
说白点,整数(不可以有小数点) 不加小数点.例如 100 200 300 1 2 3 4
而基数呢?>
可以有小数点,也可以没有小数点.
7.5 是分数,7 又2 分之一 7 1/2 是代分数.
区别就是在某些题型中要互相转换才更容易去计算.

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