Select the best answer for the question.
2. Solve the following: [tex]$32 \div 4+4 \times 8=$[/tex] ?
A. 32
B. 40
C. 96
D. 42
Answer (1)
Perform the division: 32 ÷ 4 = 8 .
Perform the multiplication: 4 × 8 = 32 .
Perform the addition: 8 + 32 = 40 .
The final answer is 40 .
Explanation
Understanding the Expression We need to evaluate the expression 32 ÷ 4 + 4 × 8 . To do this, we must follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction). In this case, we have division, multiplication, and addition.
Performing the Division First, we perform the division: 32 ÷ 4 = 8 .
Performing the Multiplication Next, we perform the multiplication: 4 × 8 = 32 .
Performing the Addition Finally, we perform the addition: 8 + 32 = 40 .
Final Answer Therefore, 32 ÷ 4 + 4 × 8 = 40 . The best answer is B.
Examples
Understanding the order of operations is crucial in many real-life scenarios, such as calculating expenses or determining the outcome of a series of events. For instance, if you earn $32 and then spend $4, and later earn 4 times $8, you can use this expression to find your total earnings: 32 − 4 + 4 × 8 = 60 . This type of calculation is fundamental in personal finance, budgeting, and understanding how different transactions affect your overall balance.
