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?