## What is subtraction for?

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This is a sum of a sequence, whose nth term is the sum of the first n terms of the infinite series; that is, all the elements of an infinite set are added; however, in reality, the limit of all the elements that are added is calculated and the mathematical limit is calculated.

The summands are placed in successive rows by arranging the numbers in columns, starting on the right with the number of units (U), on the left with the tens (D), the next with the hundreds (C), the next with the thousands (M), and so on.

Normally the carries are not noted on the paper, adding directly the carry to the summands of the following column and the aspect of the realization of the sum without the auxiliary annotations would be the following:

### Parts of the subtraction

It is important to note that addition and subtraction are the most basic mathematical operations and the first to be learned during childhood; the easiest way to say is the repetitive action of adding one (1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 = 4) which in turn have their complex pair, if the sum of the pair is multiplication and in subtraction, division.

The addition has several properties, which are classified within the laws that support it are 5 and are known by the following names: commutative law, act of uniformity, associative law, dissociative law and monogamy law.

Sometimes subtractions give less graphic results than in the arithmetic of popular knowledge, used to operate with units of currency or grams of food. When subtracting two vectors, for example, they do not even have to be located on the same line. If we understand that each vector has an origin and an endpoint, then the difference between the two will originate at the end of the minus sign and at the end of the subtraction.

### What is subtraction

You may not be very familiar with the concept of the neutral element or identity element on the one hand, and the symmetric element on the other. Both are defined for a given operation (we are going to present them for addition, in this case).

Simply put, the neutral element or identity element of the sum of functions is the one that when operated with any other element, in this case any other function, gives as a result the function itself. As you can see, it is the element that has a neutral effect when applied with any other element the operation for which it is defined.

### Introduction of addition and subtraction

Mathematics is a scientific discipline that is often difficult to understand because of its complexity and abstract dimension. However, the basic arithmetic operations are known by the vast majority of the population.

Multiplication is a form of addition but in an abbreviated form. The characteristic sign of this operation is x. Thus, 3×4 is the same as saying 3+3+3+3+3. To exercise this type of operation, most schoolchildren around the world familiarize themselves with the famous multiplication tables.

Anthropologists consider that the numerical ability of early homo sapiens was very rudimentary, but effective enough to understand basic ideas related to addition and subtraction of things.