Significant figures in mixed operations

[@elaine1158]

Oh my god THANK YOU. I knew significant figures were easy, but I had such a hard time applying sig fig rules to mixed operations. This really helped me understand what was happening and how to track my progress to come up with the right amount of sig figs in my answer. I can't thank you enough!

[@hashemennab4164]

I LOVE YOU MAN !! We pay for universities and learn from youtube !!!

[@krissyhuynh2145]

Watched several videos from other youtubers about how to do this, and your video was by far the easiest to understand! Thank you so much!

[@bxatch]

accidental asmr!

[@luckydal2059]

I just want you to know your video is still helping people 7 years later :)

[@dickcheese4048]

I appreciate the work you put into this video. Great video overall. I learned it in an instant! thank you.

[@atauygur8104]

I really can not express how relieved am I thanks to you. THANK YOU VERY MUCH!!🙂

[@pamperedpanda9913]

Your voice is so relaxing!

[@zedanorice]

best explanation i've come across. thank you!

[@zzzzasfasfweq7445]

Thank you man. Your voice is so soothing I wish you were my professor. :)

[@macklemorg1294]

You are legit the most amazing Chemistry teacher ever!

[@ktkc1o7]

Thank you for clearly explaining how to track sig figs in mixed operations! I used to always go back and forth on what I was supposed to do and it made homework SO frustrating!

[@Relotouch]

Thank you, this is fantastic.

[@BLINKGreenTeaAddict]

This helped a lot! OMG! You explained it better than my instructor.

[@melissatarrant464]

omg ive watched so many videos and only get it after this one thank you so much holy

[@MatthewRyanPrnka]

If you rounded the product of the first step calculation to an answer with no decimals/digits of precision. Then rounded the answer from the second calculation step of addition, the answer would be 25. But, you shouldn't round a calculation twice during a problem. The rounding is done in the final calculating step of the problem.

[@mohanadahmed3117]

I counted the least number of sig fig in the question And used it To detrmind how many sig fig the answer should be Am I Correct ?

[@Plastik13]

No, it would be 26. 13 + 12.690 = 25.69 so 26.

[@ll1844]

@@Plastik13 but you're rounding before final answer if you do it that way.

[@vihanprashant9702]

I did this so many times until now. Thanks to you, I have realized why all my calculations kept going wrong!

[@thinginground5179]

my textbook made this rule so unnecessarily confusing lmao thanks

[@Daschickenify]

Awesome! Thank you! Teachers always seemed to skip this important part of mixing addition/subtraction and multiplication/division rules.

[@saulohm911]

Thank you so much for making this video. I searched for a good hour or two watching videos of shitfucks doing a bunch of basic useless stuff but finally when i came here i found what i was looking for

[@evahenson9656]

Thank you Mr. Prnka. My chemistry lab partner and I were feeling confused how to do mixed operation significant figure calculations and your video helps!!!

[@moyindipe2098]

Wow. Now I know what I was doing wrong for mixed SF operations- two rules apply, not one. Thank you for the short but helpful video

[@trevorschnedler4472]

You've got picture perfect handwriting!

[@AnthonyBecker9]

This is the video where I finally understood sig figs :) Thanks!

[@chastainparrish7983]

Thank you! Great video

[@AEEZProductions]

i love your voice. so soothing haha

[@TheCheckdown]

Thanks heaps dude. Helped me out of a spot of bother.

[@pspdslite5991]

ty i was confused on when i was suppose to round. u solved my problem. excellent!

[@justinpark2344]

Thanks. Your video really helped.

[@TayoEXE]

This is the first confusion that comes to my mind with every textbook and every teacher that explains "these are the rules for mult/div, and these are rules for add/sub. Got that everyone??" Oh yeah, sure that, makes sense, BUT WHAT ABOUT THE MORE COMMON CASE WHERE THEY ARE MIXED?? Nobody seems to explain this, and it shouldn't be that hard.

[@Qwarkeh]

Thanks a ton!

[@kylieharris5382]

This helped me soooo much! Thanks.

[@jovas14rocks]

Thanks, more examples would be appreciated.

[@theblitz1687]

yes it helped a ton. thanks. also side note: i died everytime when i heard the pen screech

[@J.dmeiri]

THANK YOU SO MUCH!

[@cassieclover99]

wow thank you so much!!!!!

[@anniebrooks1840]

This is so helpful! Thanks you!!!

[@markg7963]

This confused me more than helped.

[@richardparker123]

YOU ARE THE MAN.

[@DianeDouaye]

Great tutorial, thank you soooooo much. Now I get it :)

[@eyeknowwhereyoulive4259]

Thank you fellow lefty

[@trashcan7140]

Thanks, I must've zoned out when my teacher mentioned this lol

[@gabbybroder850]

THANK YOU THANK YOU THANK YOU!

[@spVln04]

Thank you very much for your help

[@sharpfive]

thank you so much this video is so helpful!!

[@philanthropicnightmare1206]

ye saved me arse. thankee kindly, sir.

[@bubbleteaa9366]

This is such a nice explanation thanksss😊

[@PeaceboneGotFound]

THANK YOU!!!

[@kelvinkum705]

SO HELPFUL

[@cardinal8206]

Nice explanation!

[@MrTrex183]

good video btw my manz sounds like Napoleon's brother Kip. Anyone else agree?

[@daysia8939]

This was so helpful! Thank youuu!

[@DanT-iu6oc]

You are singlehandedly disproving my notion that all chemistry teachers are awful. Thanks.

[@defeatedskeptic311]

Thanks very much.

[@hippogjavi4029]

Thank you so much. I was struggling with this portion of my chemistry test.

[@Pyroshark]

Thank you :)

[@jonasvalero]

Oh praise the the Lord that you were born! Thanks!

[@rocketrider1405]

Very helpful. I mean it !

[@darrenkelly7649]

thank you

[@iMaGiNaTiOnWpAsSiOn]

For question number 2, what is the point of noting where the decimal point ended when the final answer is going to be determined by the amount of significant figures?

[@aerodronia9694]

Thank you so much

[@seiraeziar8631]

thx sir, it's help a lot in sigfig for mixed operation

[@aminata8320]

thank you!!!

[@rajmano3112]

I am curious why the number 6, when hand written, looks different from '6'. I have seen this with many of my students. Do the (elementary) schools train the students this way?

[@aaravdixit1671]

thank u so much

[@shaunedalati5297]

Legendary

[@savannahvolz3294]

I get it but I still get confused when it comes to the dops

[@KRAPYBARA84]

Reviewing chem 101 to take 150 so I can take O chem in the fall and my memory is pure shite! Sig figs are so important! My teacher (online lecture/ lab irl) tried to explain this but it was so confusing. AND GUESS WHAT!? It doesnt have to be confusing!! What I am trying to say is thank you! This is a month class and I have no room for error! again, thank you!

[@wqfflesyrup8740]

at 0:49, if the equation inside the parentheses were addition/subtraction, how would you round it?

[@Zach-qu9zz]

Thanks so much

[@almostmybedtime]

This is basically asmr

[@raveena513]

So in the final answer of these problems do you just ignore the number decimal places and just focus on the amount of sig figs??

[@esotericthunderdragonstyle]

its like you're trying to scare the mic or something

[@almostmybedtime]

What pen are you using?

[@samanthagutierrez6165]

god bless your heart

[@flamboyant731]

A MASSIVE THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!WOO HOO FINALLY- now i understand

[@anniejurkovich8316]

His voice is so cute 😭

[@farisabufarha531]

dude u saved me

[@andrewhackshaw837]

YES SIR! YOU JUST SAVED THE DAY! TIME TO CRUSH CHEMISTRYY

[@jefferybrown332]

To your final comment, yes, it has helped a lot, cheers, mate!👍

[@henrylol9253]

thanks

[@lizzietheelf]

what's the point on the dop? it seems to not even be a factor in any of this

[@kvancbey1252]

Thank you Teacher

[@maskedmarvyl4774]

At 5:02, I don't get the same result he does, whether its dividing 11.043 by 9.3, or dividing 11.04 by 9.3.

[@angerham]

Thank you for this. Chem exam in an hour

[@maskedmarvyl4774]

At 2:33, he writes a 13 under the 12, which may give the impression that he is rounding up during an intermediate step. I'm sure that was not his intention. You do not do any rounding during the solving of an equation. You only do that at the very end.

[@SiyabongaMsimango-kv7sc]

What happened with 13 why didn't we use it as it is?

[@crisizzi3668]

goat

[@TayoEXE]

If we're "actually only working with 13," why did you write out 25.3796?

[@theblitz1687]

you still do the rounding at the final, but he just wanted to show how that 0dop number behave like and that is 13,(edit: focus being that it has 0dop so answer will be also 0dop, but rounding is left for final)

[@adamgrace3369]

Kip? Is that you?

[@rysus]

My college TA got this part of sig figs wrong, and she won't admit it no matter what I show her

[@xje1981]

I’m curious why the answer to the first problem wouldn’t be 25. (with a decimal but nothing after the decimal, indicating precision to the decimal). Both of the figures had decimals indicating precision. Otherwise without the decimal the number is ambiguous. Am I not understanding something?

[@avrilrincon2251]

you're correct, the number can be ambiguous but for our purposes, we assume that it is in fact the value of 25. however, yes the more formal way to show the answer is adding the decimal, for the purpose of the video he was just trying to reinforce that there were zero decimals of precision.

[@J.B24]

Matthew Ryan Prnka, You lost me at 3:14. Can go into more depth as to why you are making your decisions?

[@zachdotson997]

THANKYOUSOMUCHIHAVEAQUIZTOMORROWANDTHISHELPEDSOMUCH

[@ScottCopenhaver]

I still don't get it.

[@risingstar6100]

Hi Matthew, can you help me with my confusion for this situation where 2000 - 32.43. Do you think the solution is 2000 or 1968?

[@ktkc1o7]

It depends if the 3 zeros in 2000 count as significant figures or not. If 2000. is written like this with a decimal after it, then yes, they count as sig figs. Otherwise, no they don't count and the solution is 2000 written without a decimal. Everything is more clear when you use scientific notation. 2 x 10^3 has one sig fig. 2.000 x 10^3 has four sig figs. Hey, now you can also show 2.0 x 10^3 and 2.00 x 10^3! You can't do that without scientific notation.

[@anthonysilva5312]

And zero equal signs…

[@sccm100]

The sound of his marker writing on the paper hurts my senses.

[@adamharoon6021]

12.690 has 5 sig figs?

[@yuyenbruh]

yes, and 3 decimal places/digits of precision

[@slime-qq5yv]

ima ko g

[@LovelyCricketSport-uy6zg]

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[@aj1234productions]

I think the answer should be 26

[@alil8419]

Yeah .....it should!!!