Evaluate the expression 6 + ( 2 + 3 ) × 5 using the order of operations: 6 + ( 5 ) × 5 = 6 + 25 = 31 .
Evaluate the expression ( 4 × 5 ) + 3 : 20 + 3 = 23 .
Evaluate the expression 1 + 10 × 3 : 1 + 30 = 31 .
Evaluate the expression 9 × 5 + 10 : 45 + 10 = 55 .
Evaluate the expression 5 + 4 × ( 5 − 6 ) : 5 + 4 × ( − 1 ) = 5 − 4 = 1 .
The expression equal to 6 + ( 2 + 3 ) × 5 is 1 + 10 × 3 .
1 + 10 × 3
Explanation
Understanding the Problem We need to determine which of the given expressions is equal to 6 + ( 2 + 3 ) × 5 . To do this, we will evaluate each expression using the order of operations (PEMDAS/BODMAS).
Evaluating the Original Expression First, let's evaluate the expression 6 + ( 2 + 3 ) × 5 . Following the order of operations, we first evaluate the expression inside the parentheses: 2 + 3 = 5 . Then, we perform the multiplication: 5 × 5 = 25 . Finally, we perform the addition: 6 + 25 = 31 . So, 6 + ( 2 + 3 ) × 5 = 31 .
Evaluating the First Option Now, let's evaluate the first option: ( 4 × 5 ) + 3 . First, we perform the multiplication: 4 × 5 = 20 . Then, we perform the addition: 20 + 3 = 23 . So, ( 4 × 5 ) + 3 = 23 .
Evaluating the Second Option Next, let's evaluate the second option: 1 + 10 × 3 . First, we perform the multiplication: 10 × 3 = 30 . Then, we perform the addition: 1 + 30 = 31 . So, 1 + 10 × 3 = 31 .
Evaluating the Third Option Now, let's evaluate the third option: 9 × 5 + 10 . First, we perform the multiplication: 9 × 5 = 45 . Then, we perform the addition: 45 + 10 = 55 . So, 9 × 5 + 10 = 55 .
Evaluating the Fourth Option Finally, let's evaluate the fourth option: 5 + 4 × ( 5 − 6 ) . First, we evaluate the expression inside the parentheses: 5 − 6 = − 1 . Then, we perform the multiplication: 4 × ( − 1 ) = − 4 . Finally, we perform the addition: 5 + ( − 4 ) = 1 . So, 5 + 4 × ( 5 − 6 ) = 1 .
Finding the Matching Expression Comparing the results, we see that 6 + ( 2 + 3 ) × 5 = 31 and 1 + 10 × 3 = 31 . Therefore, the expression 1 + 10 × 3 is equal to 6 + ( 2 + 3 ) × 5 .
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 example, if you buy 6 items that cost $3 each and then use a coupon for $5 off your entire purchase, the total cost can be calculated as 6 × 3 − 5 = 13 . This is different from 6 × ( 3 − 5 ) = − 12 , which doesn't make sense in this context. The order of operations ensures that we perform the calculations in the correct sequence to arrive at the correct result.
The expression that equals 6 + ( 2 + 3 ) × 5 is 1 + 10 × 3 since both evaluate to 31. We confirmed this through step-by-step calculations. Therefore, the correct answer is Option B.
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