The stem of math math is that someone divided the word math into: mental abuse of human beings and then translated it, so the stem of math math appeared.

In life, a lot of English will be split or abbreviated. Because sometimes English words are longer, it is easier to write and remember with abbreviations. That's why it is widely circulated. However, there will be less word expansion after splitting, and word expansion usually occurs in funny situations. This time will have different meanings.