MTTC 103 Elementary Practice

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Prepare for the MTTC 103 Elementary Test with comprehensive quizzes and detailed explanations to boost your confidence and scores.

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What is the value of the expression 10 - 2 × (3 + 4)?

The correct answer is: 4

To find the value of the expression 10 - 2 × (3 + 4), it's important to follow 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)). First, deal with the parentheses: we calculate 3 + 4, which equals 7. The expression then becomes 10 - 2 × 7. Next, we perform the multiplication. 2 × 7 gives us 14. Now, the expression simplifies to 10 - 14. Finally, we perform the subtraction: 10 - 14 results in -4. Therefore, the correct value of the expression is -4, but as noted, the answer provided does not match the choices. The interpretation of the answer being D (4) indicates a different calculation approach or an error in the answer options, as the correct computation evaluates to -4, not 4.