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# Order of Operations

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by

## Jerry Karacz

on 7 September 2011

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#### Transcript of Order of Operations

Parentheses
Exponents
Multiply or Divide Add or Subtract PE M
D A
S 4 + 2 x 3 = Let's warm up . . . Who said 10?
Who said 18? Does it really matter? Would it matter if you put your underwear or pants on first? Maybe not if you're... In math the order in which we solve problems is EXTREMELY important! You charge your customers a \$200 flat fee for renting the studio and \$75 per hour for the time that it is used. As you know I am an aspiring hip-hop artist and want to lay down a few Fresh tracks. Let's say you own a recording studio. I need the studio for 4 hours. \$200 flat fee That will be...
200 + 75 x 4 ...right? 200 + 75 x 4 \$1,100 Oh but wait... I think I owe you \$500! So why do we disagree? 200 + 300 200 + 75 x 4 \$500 You almost overcharged me \$600! http://www.teachertube.com/viewVideo.php?video_id=79967 http://www.teachertube.com/viewVideo.php?video_id=79967&title=PEMDAS_Rap Maybe my first track will help you out . . . You like my Album cover?
(Please) excuse my dear Aunt Sally Here is an example... \$75 per hour 275 x 4 That's a lot of Benjamins!!! Check this out yo! So who is right? Sometimes you have to follow the order of operations inside parentheses! 6 x ( 14 - 2 x 6 ) Remember how to use exponents! 3 4
is NOT 12! it is 4 x 4 x 4 or 64! Multiplication still comes before addition and subtraction! What if there is no operation sign??? 4 ( 6 - 3 ) no sign means multiply What if the exponent is on the parentheses? What if there are parentheses inside the parentheses? ? evaluate what is inside the parentheses
apply the exponent ( 8 - 3 ) 2 5 25 2 20 - [ 2 ( 6 + 4 )] Work inside out! 20 - [ 2 x 10 ] 20 - 20 0 When you work problems please... SHOW YOUR WORK!!! Order of Operations Created by: Jerry Karacz 4 + (7 - 4) 2 12 - 5 + 6 x 3 2 - 7 + 3 3 r 2 5 + 4(12 - 2) . . 30 - (4 + 2 ) 2 3 . Let's practice! 30 - 6 + 5 4 2 __ . . .
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