Answer:
D) 68
Explanation:
PEMDAS
The PEMDAS rule is an acronym representing the order of operations in math:
- Parentheses
- Exponents
- Multiplication and Division (from left to right)
- Addition and Subtraction (from left to right)
Given expression:
72 - 9 ÷ 3 · 2 + 2
Following the order of operations, carry out the multiplication and division first, working from left to right.
Divide 9 by 3:
⇒ 72 - 9 ÷ 3 · 2 + 2
⇒ 72 - 3 · 2 + 2
Multiply 3 by 2:
⇒ 72 - 3 · 2 + 2
⇒ 72 - 6 + 2
Now carry out the addition and subtraction, working from left to right.
Subtract 6 from 72:
⇒ 72 - 6 + 2
⇒ 66 + 2
Add 66 and 2:
⇒ 66 + 2
⇒ 68
Solution
72 - 9 ÷ 3 · 2 + 2 = 68