什么是分式有意义
7th Grade•40 minutes•国家义务教育数学课程标准
Learning Objective
我可以说出一个分式有意义的条件。
Key Concepts
Fractions are used to represent smaller pieces or parts of things.
A fraction is written as one number on top, one number on bottom, and a line between them.
The bottom number of a fraction tells us how many parts something is divided into, and the top number tells us how many of those parts we have.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
View questions preview
1. 用分数表示一个整体被分成的相等部分时，分母表示什么？
2. 如果一个披萨被切成8块，你吃了其中的3块，用分数表示你吃了多少披萨。
3. 以下哪个条件对于分数有意义是必要的？
...and 4 more questions
Educational Video
Math Antics - Fractions Are Parts
mathantics