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Order of Operations. 10.5. Simplifying Expressions p 679. Order of Operations 1. Perform all operations within parentheses ( ), brackets [ ], or other grouping symbols such as square roots or fraction bars. 2. Evaluate any expressions with exponents.
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Order of Operations 10.5
Simplifying Expressions p 679 Order of Operations 1.Perform all operations within parentheses ( ), brackets [ ], or other grouping symbols such as square roots or fraction bars. 2. Evaluate any expressions with exponents. 3. Multiply or divide in order from left to right. 4. Add or subtract in order from left to right.
Example p 679 Simplify. Exponent Add from left to right.
Example p 679 Simplify. Multiply in the numerator divide Why is the answer positive?
Example 679 Simplify.
Example p 680 Simplify. parens squareroot multiply add subtract
Example p 680 Simplify. parens bracketsmultiply brackets add multiply subtract
Practice 4 p 679 Simplify. exponent exponent exponent
Practice 5 p 680 Simplify. grouping exponent multiply
Practice 6 p 680 Simplify. grouping exponent multiply
Example p 681 The graph shows the monthly normal temperatures for Barrow, Alaska. Use this graph to find the average of the temperatures for the months January through May. continued
continued There are 5 months from January through May. The average of the temperatures is
Practice 7 p 680 Simplify. parensadd bracketsmultipy brackets add multiply subtract
Example Simplify. parens 1 4 multiply