The highlight of this book is explanation.

It's important to read the explanation after you finish the problem.

Otherwise, the problem is the same as not doing it.

There is also the need to insist on doing it every day.

Mathematics needs feeling.

Cook a little every day, and you will naturally have ideas.

Louzhu refueling

I used to be similar to you in math.

The senior high school entrance examination 1 10+ passed.

As long as you work hard

Rice problem