Question

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

Answer 1

ProblemSimplify 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 ExampleProblemSimplify 20 – 16 ÷ 4. 20 – 16 ÷ 4 Order of operations tells you to perform division before subtraction. 20 – 416Then subtract. Answer 20 – 16 ÷ 4 = 16