Section_1-2 - 1 2 ( 5 3-+ + [ ] ) 60 70 ( 4 ) 6 8 ( 3 2-- +...

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Section 1-2 Exponents and Order of Operations
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Objectives Understand exponents and where they fall in the order of operations Evaluate expressions Understand what “evaluate” means.
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Exponent - how many times the base number is used as a factor 4 2 2 2 3 2 Please never just multiply the base times the power. That makes me want to pull my hair out.
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Where do exponents fall in the order of operations? Simplify each expression 3 2 2 3 14 - + ) 3 8 ( 5 4 2 2 - +
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We do multiplication and division from left to right ) 3 5 ( 2 ) 3 5 ( 2 - + ÷ + ) 2 13 ( ) 7 9 ( 8 ÷ + - ÷
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Treat brackets like parentheses (Start with the inner most set) [ ] ) 1 2 ( 3 4 5 2 + + [ ] 3 )
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Unformatted text preview: 1 2 ( 5 3-+ + [ ] ) 60 70 ( 4 ) 6 8 ( 3 2-- + Evaluate each expression To evaluate an expression, you plug in given values of the variables and simplify. This is NOT solving. b a -3 2 3 4 , 7 = = b a Evaluate ) 4 ( 2 +-a c a 3 , 3 = = c a Volunteers will get a special surprise! For t = 4 and r = 5 2 rt ( 29 2 rt Exit Question What is the difference between simplifying and evaluating an expression? HW #2 page 12 (7-15 odd, 21, 22, 25, 26, 35, 51) For 51 pretend the numerator is in parentheses Quiz ___...
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This note was uploaded on 05/16/2011 for the course ALGEBRA 098 taught by Professor Johnson during the Spring '09 term at Grand Valley State University.

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Section_1-2 - 1 2 ( 5 3-+ + [ ] ) 60 70 ( 4 ) 6 8 ( 3 2-- +...

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