# How to Solve Mathematical Problems Using the PEMDAS Rule

## What is the PEMDAS rule and how can it help solve mathematical problems?

The PEMDAS rule is an acronym that stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). This rule helps in determining the order of operations when solving complex mathematical expressions. How does the PEMDAS rule work?

## Answer:

The PEMDAS rule is used to simplify and solve mathematical expressions by following a specific order of operations. Let's break down each step of the PEMDAS rule:

## Parentheses:

Parentheses are used to group numbers or variables together. When solving an expression, you must first evaluate the operations inside the parentheses before moving on to other parts of the expression.

## Exponents:

Exponents are used to indicate repeated multiplication of a number by itself. In the PEMDAS rule, you must solve any exponents in the expression after parentheses.

## Multiplication and Division:

After dealing with parentheses and exponents, the next step is to perform multiplication and division from left to right. If there are multiple operations of multiplication and division in the expression, they should be solved in order of appearance.

## Addition and Subtraction:

The final step in the PEMDAS rule is to perform addition and subtraction from left to right. Similar to multiplication and division, these operations should be done in order of appearance.

By following the PEMDAS rule, you can effectively solve mathematical expressions and ensure accurate results. Remember, always start with parentheses, then move to exponents, followed by multiplication and division, and finally addition and subtraction.