JustaBill 0 #1 August 22, 2006 man do I feel like an idiot. Having my son do some practice math problems and I forget the order of operations as far as parenthesis etc go. If there aren't any parenthesis do you just go left to right with each operation or do you do the multiplication or division first. 6+5x4-7 is that 6+5=11, 11x4=44, 44-7=37. Or is it 5x4=20, 20+6=26, 26-7=19? I'm thinking the 2nd one is the right one but for the life of me I can't remember for sure and I hate to teach him wrong. Thanks for the help guys.------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
Squeak 17 #2 August 22, 2006 Quote man do I feel like an idiot. Having my son do some practice math problems and I forget the order of operations as far as parenthesis etc go. If there aren't any parenthesis do you just go left to right with each operation or do you do the multiplication or division first. 6+5x4-7 is that 6+5=11, 11x4=44, 44-7=37. Or is it 5x4=20, 20+6=26, 26-7=19? I'm thinking the 2nd one is the right one but for the life of me I can't remember for sure and I hate to teach him wrong. Thanks for the help guys. Braket I ndices (little numbers raised) Multiply Divide Add Ssubtract (AKA BODMAS)You are not now, nor will you ever be, good enough to not die in this sport (Sparky) My Life ROCKS! How's yours doing? Quote Share this post Link to post Share on other sites
JustaBill 0 #3 August 22, 2006 boy now I really feel stupid cause I have no idea what that means either. Somebody hand me a beer ------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
waltappel 1 #4 August 22, 2006 Quote man do I feel like an idiot. Having my son do some practice math problems and I forget the order of operations as far as parenthesis etc go. If there aren't any parenthesis do you just go left to right with each operation or do you do the multiplication or division first. 6+5x4-7 is that 6+5=11, 11x4=44, 44-7=37. Or is it 5x4=20, 20+6=26, 26-7=19? I'm thinking the 2nd one is the right one but for the life of me I can't remember for sure and I hate to teach him wrong. Thanks for the help guys. There is an order of precedence of operations: Exponents Negation (-) Multiplication and division Addition and subtraction The short version is do all the exponents then do all the negatives, then do multiplication and division, then add the results going from left to right. For example, 6+5x4-7 = 6 + 20 - 7 = 19. Walt Quote Share this post Link to post Share on other sites
JustaBill 0 #5 August 22, 2006 Thanks Walt. That's what we thought, but couldn't remember for sure and didn't want to teach him wrong.------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
Nightingale 0 #6 August 22, 2006 I learned the mnemonic "Please Excuse My Dear Aunt Sally" which stood for Parentheses Exponents Multiplication, Division Addition, Subtraction. Since division is really multiplication (18 divided by 2 is the same as 18 times one half), and subtraction is really addition (you're not subtracting... you're adding a negative number. one minus one is the same as one plus negative one), you do division in the same step as multiplication, left to right, and same with addition and subtraction. Quote Share this post Link to post Share on other sites
FallinWoman 1 #7 August 22, 2006 I do not know what negation is....but here is what I teach my students: P arentheses (from the inside out if there is more than one set) E xponents MD Multiplication and division as you come to it from left to right AS Addition and subtraction from left to right Mnemonic: Please Excuse My Dear Aunt Sally. ~Anne I'm a Doll!!!! Quote Share this post Link to post Share on other sites
JustaBill 0 #8 August 22, 2006 Thanks guys, I learned something tonight. Well relearned anyway. I appreciate the help. He struggles in math as it is and I hate to steer him the wrong way.------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
Rainbo 0 #9 August 22, 2006 who's strugglin' Rainbo TheSpeedTriple - Speed is everything "Blessed are those who can give without remembering, and take without forgetting." Quote Share this post Link to post Share on other sites
JustaBill 0 #10 August 22, 2006 Quote who's strugglin' Well he didn't know either Where have you been, I was in Chicago last weekend for a wedding at the DZ and missed seeing you there, well I missed jumpin with ya, Kim missed seeing you ------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
Rainbo 0 #11 August 22, 2006 My daughter had an in town gig with friends Sat evening so we hung out in town. Sorry to miss you guys.Rainbo TheSpeedTriple - Speed is everything "Blessed are those who can give without remembering, and take without forgetting." Quote Share this post Link to post Share on other sites
JustaBill 0 #12 August 22, 2006 We'll get together next time. First couple beers are on me.------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
SuFantasma 0 #13 August 22, 2006 Quote I learned the mnemonic "Please Excuse My Dear Aunt Sally" which stood for Parentheses Exponents Multiplication, Division Addition, Subtraction. reply] In skydiving terms: [P]arachute [E]mergency Procedures [MD] Medical Doctor [AS] Additional SurgeriesY yo, pa' vivir con miedo, prefiero morir sonriendo, con el recuerdo vivo". - Ruben Blades, "Adan Garcia" Quote Share this post Link to post Share on other sites
LisaM 0 #14 August 22, 2006 Since you already got your answer, I will just share with you that I feel your pain. I had to relearn long division again a couple of years ago and all my multiplication facts! They teach new and different tricks to check your work today as well that has me going "huh" as well. Keep up the good work! ~ Lisa ~ Do you Rigminder? Quote Share this post Link to post Share on other sites
mx757 4 #15 August 22, 2006 Only numbers for figures he needs to know... 36-24-36 Quote Share this post Link to post Share on other sites
popsjumper 2 #16 August 22, 2006 Wouldn't it be easier to hire a tutor? Kallend comes to mind here.... My reality and yours are quite different. I think we're all Bozos on this bus. Falcon5232, SCS8170, SCSA353, POPS9398, DS239 Quote Share this post Link to post Share on other sites
JustaBill 0 #17 August 22, 2006 Quote Wouldn't it be easier to hire a tutor? Kallend comes to mind here.... We have hired a tutor, but at 8pm it's tough to get a hold of her, so I did the next best thing ------------------------------------------------ I've done so much, with so little, for so long I'm now expected to do everything with nothing forever Quote Share this post Link to post Share on other sites
