Calculating the expression 2 + 3 * 4 - 5 results in what value?

Calculating the expression 2 + 3 * 4 - 5 results in what value?

• A. 9
• B. 5
• C. 10
• D. 3

Answer: (A)

To solve the expression 2 + 3 * 4 - 5, it's crucial to apply the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)). 1. First, perform the multiplication in the expression. Here, you multiply 3 by 4, which gives you 12. 2. Replace the multiplication in the original expression: 2 + 12 - 5. 3. Next, move on to addition and subtraction from left to right. Start by adding 2 and 12, which results in 14. 4. Now, subtract 5 from this result: 14 - 5 equals 9. Thus, the final answer to the expression is 9. This demonstrates the correct application of the order of operations, resulting in the accurate value of the expression being calculated.

To solve the expression 2 + 3 * 4 - 5, it's crucial to apply the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).

1. First, perform the multiplication in the expression. Here, you multiply 3 by 4, which gives you 12.

2. Replace the multiplication in the original expression: 2 + 12 - 5.

3. Next, move on to addition and subtraction from left to right. Start by adding 2 and 12, which results in 14.

4. Now, subtract 5 from this result: 14 - 5 equals 9.

Thus, the final answer to the expression is 9. This demonstrates the correct application of the order of operations, resulting in the accurate value of the expression being calculated.