adiçao

Adição refers to the mathematical operation of combining two or more numbers to get a total sum. In arithmetic, addition is one of the four basic operations of elementary mathematics, along with subtraction, multiplication, and division. The symbol "+" represents addition, and the operation is commutative, meaning that the order of the addends does not affect the result. It is also associative, so grouping the numbers does not change the sum. For example, 3 + 5 = 8 and (3 + 5) + 2 = 3 + (5 + 2) = 10.

In mathematics, addition is defined for various number systems, including natural numbers, integers, rational numbers, real numbers, and complex numbers. In each system, the operation follows specific rules that preserve the structure of the set, such as the requirement that adding two real numbers yields another real number. Addition is also a key operation in algebraic structures such as groups, rings, and vector spaces, where it must satisfy certain axioms.

Beyond pure mathematics, "adição" also denotes combining substances in chemistry, such as the addition of a reagent to a reaction mixture. In this context, it refers to a process that increases the quantity or concentration of a component in the system. The term can also appear in various other fields, including engineering and computing, whenever combining elements or merging data is required.