Keywords: second grade primary school 150 words

Word count: 150 word composition

This article is applicable to: the second grade of primary school.

Composition source:

This composition is about the second grade of primary school 150 words. The title is "brackets". Everyone is welcome to contribute enthusiastically. Hello, everyone, my name is brackets. I believe everyone knows me. Me, very useful. Let me introduce you. In math problems, if you have me, you must think of me first, for example: 37+(26+2 1) You should do this: 37+(26+2 1)=84 If you do this: 37+(26+2 1)=

Of course, I didn't use it indiscriminately!

Students, do you still remember me?