Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
3. Real Numbers and the Number Line
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Exercise 84 Page 22

Pay close attention to the order of operations.

442

Practice makes perfect
According to the order of operations, multiplication should be evaluated first and addition last.
Operation Before Simplification After Simplification
Multiply 2 + 22 * 20 2 + 440
Add terms 2 + 440 442
The expression equals 442.

Alternative Solution

Using a Calculator

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