Evaluating Expressions

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Presentation transcript:

Evaluating Expressions

Review: “Evaluate” Evaluating an expression means to plug in! For example: 2n + 4 for n = 3 2(3) + 4 10

Review: Order of Operations Please- Parentheses Excuse- Exponents My- Multiplication Dear- Division Aunt- Addition Sally- Subtraction

Review: Order of Operations Remember that Multiplication and Division are a pair…do in order from left to right. Addition and Subtraction are also a pair….do in order from left to right.

Let’s Practice… Evaluate the following expressions. 3r – 17 for r = 6 10 – 6d for d = 4 3. 5g + 20 – (4g) for g = 5 4. [(3 + p)2 – 2p] for p = 7