百分数知识是小学阶段的重点知识之一,为了让同学们更好地掌握这一单元的知识,现在我们就一起来复习一下吧!一、知识梳理。1.百分数的意义和写法。百分数的意义:表示一个数是另一个数的百分之几的数叫作百分数。百分数的读写法:先读百分号(%),读作百分之,“%”前面是几就读几。写百分数时通常不写成分数形式,而在原来的分子后面添上百分号“%”来表示。 Knowledge of the percentage is one of the key knowledge of the elementary school stage, in order to let the students better grasp the knowledge of this unit, let’s review together! First, the knowledge combing. 1. Percentage of the meaning and wording. The Meaning of Percentage: The number that represents a few percent of another number is called the percentage. Percentage of reading and writing: read the percent sign (%), read as percent, “% ” in front of a few read a few. Write the percentage is usually not written as a fraction of the form, but in the original molecule to add the percent sign “% ” to represent.