In fact, both calculus and multiplication can return to addition, subtraction, multiplication and division, and the five basic operations really defined are: addition, subtraction, multiplication and division and modular form.
Mathematical symbols such as addition, subtraction, multiplication and division (+-x÷) have been developed for a long time and were widely used in17th century. The addition symbol begins with the prefix p of the English plus sign. The same is true for subtraction, which uses the prefix m of MINUS sign in English, and gradually becomes MINUS sign for the convenience of sketching. The symbol of division was first used in Varis, England, and later popularized in England. The multiplication symbol comes from the addition symbol, because the multiplication operation is developed from the addition operation of several identical numbers, for example, 13×5 is13+13+/kloc-0+03+13. In other words, multiplication is a special addition operation, so the addition symbol becomes the current multiplication symbol with a slight change.