Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
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Exercise 10 Page 415

Pay close attention to the order of operations.

16

Practice makes perfect

According to the order of operations, expressions inside parentheses are evaluated first, while addition and subtraction are evaluated last. 4÷(0.5)^2 For this exercise, we must remember to evaluate the exponent first, and the divison next.

Operation Before Simplification After Simplification
Calculate power 4÷(0.5)^2 4÷ 0.25
Calculate quotient 4÷ 0.25 16

The expression equals 16.

Alternative Solution

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