Give two examples that show how using parentheses can change the order in which operations are performed in an expression?

Problem Simplify 3 + 5 • 2. 3 + 5 • 2 Order of operations tells you to perform multiplication before addition. 3 + 10 Then add. Answer 3 + 5 • 2 = 13

Example ProblemSimplify 20 - 16 : 4. 20 - 16 : 4 Order of operations tells you to perform division before subtraction. 20 - 416 Then subtract. Answer 20 - 16 : 4 = 16