The following are the knowledge points:

However, to be precise, what we call the mathematical gap means that the average American is far from China in mental arithmetic and language ability. It is no exaggeration to say that any old lady who sells vegetables in China is better than a master's or doctor's degree in the United States.

In fact, this mainly refers to the common people. American math professors are definitely not bad. Among the winners of the Nobel Prize in Mathematics, the United States has the largest number of winners.