Question

Why are parentheses, brackets, and braces important when evaluating a numerical expression?

Answer 1

The Order of Symbols

Aside from operations, symbols such as parentheses, brackets and

braces, follow a specific order too!

First, you carry out the operation inside the PARENTHESES.

Then, you carry out the operation inside the BRACKETS.

Lastly, you carry out the operation inside the BRACES.

Answer 2

The most basic and common reason to use parentheses, brackets, and braces is to control the order of operations

Explanation:

In this case you would calculate 5 minus 2 first (parentheses), then multiply by 8 (brackets), then complete the part inside the curly braces, and finally multiply by 6.