Arithmetic is a basic branch of mathematics. It focuses on natural numbers and nonnegative fractions. The content of arithmetic includes two parts. The first part discusses the reading, writing and basic operations of natural numbers. This part includes carry system and notation, mainly decimal system.
Arithmetic:
Arithmetic is the oldest, most basic and primitive part of mathematics. It studies the properties and operations of numbers.
The oldest mathematics, arithmetic, is formed by accumulating and sorting out the properties of numbers and the experience of four operations between numbers in the application process.
All mathematics in ancient times was called arithmetic, and modern algebra and number theory originally developed from arithmetic. Later, the concepts of arithmetic and mathematics appeared, which replaced the meaning of arithmetic and included all mathematics, and arithmetic became a branch of it.
The mathematical theory of natural numbers or positive integers is called arithmetic. As for the names of many branches of mathematics, such as geometry and algebra, they came into being very late.
Foreign language books that systematically collate predecessors' mathematical knowledge were first written by Euclid of Greece. The book The Elements of Geometry consists of fifteen volumes, and the last two volumes are supplemented by later generations. Most of the books belong to geometry knowledge. The seventh, eighth and ninth volumes discuss the properties and operations of numbers, which belong to arithmetic.
The Latin word "arithmetic" comes from the Greek word "number and number technology (phonology)"
The ancient meaning of the word "suan" in China also means "number", which means bamboo pieces used for calculation. In ancient China, all complicated numerical calculations used calculation. So "arithmetic" includes all the mathematical knowledge and calculation skills at that time. The earliest handed down Nine Chapters Arithmetic, the lost Xu Shang Arithmetic and Du Zhong Arithmetic are all discussing the solutions to various practical mathematical problems.
Refer to the above? Baidu encyclopedia-arithmetic