Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
2. Order of Operations and Evaluating Expressions
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Exercise 61 Page 15

Pay close attention to the order of operations.

C

Practice makes perfect

According to the order of operations, expressions inside parentheses are evaluated first, while addition and subtraction are evaluated last. For the given expression, this means evaluating the quotient first and the sum of resulting terms next.

Operation Before Simplification After Simplification
Calculate quotient 4+ 10 ÷ 4 +6 4+ 2.5 +6
Add terms 4+ 2.5 +6 6.5 +6
Add terms 6.5 + 6 12.5

The expression equals 12.5. Therefore, the correct answer is C.

Alternative Solution

Using a Calculator
We can also evaluate this expression using a calculator. To do so, type it as shown below.