21 times 36?

Definition

What is?
Multiplication is a mathematical operation that consists of adding a number to itself several times. For example, 21 times 36 equals 756, which means that we are adding the number 21 to itself 36 times.

Multiplication is denoted by the symbol "x" or "•" and can be represented in different forms, such as an algebraic expression or a multiplication table.

Multiplication is a fundamental operation in mathematics and is widely used in many areas, such as geometry, algebra, calculus, physics, engineering, finance, among others. It is used to solve problems of repetitive addition, such as calculating areas and volumes, and is also used in various mathematical formulas and equations.

For example, the area of a rectangle can be calculated by multiplying the length by the width, that is, A = l x w. Similarly, the equation of a line in Cartesian coordinates can be written as y = mx + b, where "m" is the slope of the line, found through the multiplication of two variables, and "b" is the y-intercept.

In summary, multiplication is an important and versatile mathematical operation that is used in many different areas and contexts.