It's almost the sixth grade, and the teacher asked me to practice in the sixth grade math class, but what can I do with the common multiple common factor above?

As a retired math teacher, my understanding is that,

Your teacher wants the whole class to preview first and practice first.

The teacher's idea is good, but it hurts the children. )

Neither the common multiple nor the common factor mentioned above can,

Never mind, it is impossible to keep up with the sixth grade, otherwise what will the teacher do with the sixth grade math class?

But don't lose at the starting line,

Find a sixth-grade math textbook to preview,

Do the common multiple and common factor lessons above (don't copy the answers to cope)

No, write it down in a notebook,

Ask the teacher,

Let them make it clear in the sixth grade class.

The key is to check the fifth grade math and those who failed.

Maybe it's better to check for leaks and fill gaps.