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PEMDAS is a useful acronym to remember the order of operations when evaluating expressions. It stands for:

鈼� **P**arentheses
鈼� **E**xponents
鈼� **M**ultiplication and **D**ivision (from left to right)
鈼� **A**ddition and **S**ubtraction (from left to right)

It helps us to know which operations to perform first when solving complex mathematical expressions. Performing steps in the right sequence is crucial to getting the correct answer. For our example, we need to use PEMDAS to simplify the expression properly and avoid mistakes.

To evaluate an expression means to find its numerical value.
We start by identifying the operations in the expression and applying them in the correct order. Following our PEMDAS rule, we:

1. Look for and solve any operations within parentheses.
2. Handle exponents next, though our example does not have any.
3. Proceed with any multiplication or division from left to right.
4. Finally, manage addition or subtraction from left to right.

In our given exercise, we have the expression \(6 + (4 \times 3) + 2\). By evaluating inside the parentheses first (multiplication in this case), we get \(4 \times 3 = 12\). Next steps follow with addition: \(6 + 12 + 2\). Adding these together gives \(20\).

Basic arithmetic involves the simple operations that form the foundation for most math problems 鈥� addition, subtraction, multiplication, and division. These operations are essential for evaluating expressions and solving equations.

In our exercise, we see a combination of these operations. Understanding how each operation affects the numbers in the expression is critical. For instance:

鈼� **Multiplication**: Combining groups of numbers. Here, multiplying 4 by 3 equals 12.
鈼� **Addition**: Combining numbers to get a sum. Adding 6, 12, and 2 gives 20.

Each operation must be executed in the correct order to ensure an accurate result. By mastering these basics and applying them correctly, you can solve even complex mathematical problems with ease.