PEMDAS is an acronym that stands for "Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right)". It is a mnemonic device used to remember the order of operations in mathematics.
In mathematics, PEMDAS is a set of rules that determine the correct order in which mathematical operations should be performed in an equation or expression. This order ensures that there is no ambiguity and that calculations are done consistently and accurately.
The first step in PEMDAS is to evaluate any parentheses in the expression. Anything inside parentheses should be simplified first. Next, any exponents in the expression should be evaluated. Exponents refer to the power or index of a number.
After parentheses and exponents, multiplication and division are performed from left to right. These operations can be applied to both numbers and variables. Finally, addition and subtraction are performed from left to right.
By following the PEMDAS order of operations, mathematicians can solve complex equations or expressions with multiple operations. This ensures that calculations are done in a standardized manner and that the correct result is obtained.
Overall, PEMDAS is a fundamental concept in mathematics that guides the sequential execution of mathematical operations to simplify and solve equations or expressions.
