Order of Operations Using Integers

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Section 2.5

• Order of Operations Using Integers

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• The rule is the same as before. Use PEMDAS along
  with the rules for adding, subtracting,
  multiplying and dividing integers.

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• Recall that an exponent applies to what is
  immediately in front of it.
• Example

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• Simplify each below
• -20 2 . 7 4

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Simplify each below
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More Evaluating of Expressions

• Evaluate each below
• x y z for x 3 and y -5

for x -4
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Averages

• Average sum of numbers
• number of numbers
• Example
• Lets find the average of the set of numbers -14,
  -16, -12, 20, and 32