It is best to prepare a child for school in advance, I think you will agree with me that mathematics is not a subject for everyone, it is not given to all children and many have problems with this subject. My child had problems with math himself, so I found this
math website and decided to learn math with him. The lessons here are interesting and funny, there are no boring texts and everything is read and served to you with interest, in just a couple of weeks my child is already doing an excellent job with math problems, and I myself learned something new.