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Big Ideas Math Algebra 2, 2014

BI

Big Ideas Math Algebra 2, 2014 View details

Maintaining Mathematical Proficiency

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Exercise 4 Page 1

Pay close attention to the order of operations.

4

According to the order of operations, expressions inside parentheses are evaluated first, and addition and subtraction are evaluated last.

50÷5^2*2 For this problem, we must remember to evaluate the exponent first. Then, moving from left to right, we will evaluate multiplication and division.

Operation	Before Simplification	After Simplification
Calculate power	50÷5 ^2*2	50÷ 25*2
Calculate quotient	50÷25*2	2*2
Multiply	2*2	4

The expression equals 4.

Alternative Solution

Using a Calculator

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

Subchapter links

Exercises p.1