According to the order of operations, which should you solve first in the expression 3 + 4 × (2 - 1)?

• A. Addition
• B. Multiplication
• C. Parentheses
• D. Subtraction

Answer: (C)

In the expression 3 + 4 × (2 - 1), the order of operations dictates that you should first address any calculations within parentheses. Parentheses indicate that the operations within them take precedence over addition and multiplication that come afterward.

In this case, you have (2 - 1) inside the parentheses, which means you will first need to perform the subtraction. Since 2 - 1 equals 1, the expression can be simplified to 3 + 4 × 1.

After handling the parentheses, you would continue with the multiplication of 4 × 1, and finally add that result to 3. This systematic approach helps ensure that mathematical expressions are evaluated consistently and correctly.