在小学数学中“倍”和倍数”是两个不同的基本概念。它们的含义不同,所指对象也不同。“倍”是指建立在乘法概念的基础上的,它不一定是整数。如“东关小学体育队有71人,其中15人是篮球队员,田径队员的人数是篮球队员的2.4倍,其余的是足球队员。足球队员有多少人?”这里2.4倍中的2.4就是小数。但是人们常把“倍” In primary school mathematics “times” and “multiple” are two different basic concepts, they have different meanings and different objects, and “double” refers to the concept of multiplication, which is not necessarily an integer. “Dong Guan Primary School Sports Team has 71 people, of whom 15 are basketball players, the number of track and field team players are 2.4 times the basketball players, the rest are football players. How many people are football players? ”2.4 here 2.4 times the decimal, but people often“ times ”