Sig Fig Rules! (Significant Figures Rules and Examples)

Ahhhh!!!! Sig figs!!!!! They’re one of the most hated and pesky chemistry topics, but they’re used so frequently it’s super important to learn their rules.
In this video, I go over all the sig fig rules that you need to know for your chemistry/ science class. Significant figures are important because in science, scientists use sig figs to communicate with each other about how accurately they actually know the information they’re showing you.
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I'm Robin Reaction!
My goal is to help you understand chemistry by breaking down difficult concepts into pieces you can understand. I've taught thousands of students and no matter how much you're struggling, I promise you can learn this stuff if you dedicate yourself to learning it and get help from the right people!

[@albertocavazos3140]

This helped after I fell asleep in chemistry today...

[@sylvie5403]

Alberto Cavazos XD

[@CRAZYBOY-vs9hs]

thank you so much my teacher was absolutely terrible at explaining this

[@RobinReaction]

haha glad to help!

[@fatmanurmandev4690]

eeeeeacxtly!

[@fastestmanalive1549]

My teacher is lecturing us about sit figs right now and I am watching this

[@Sam-qf7hk]

Okay, that was…amazing. Learnt 90 minutes of class stuff in 4 minutes.

[@RobinReaction]

yay! so glad it helped!

[@arianarice4911]

Thanks for telling me the extra 80% that my physics teacher neglected to mention! Helpful!

[@RobinReaction]

haha glad to help!

[@itzjay2002]

Thank you it just gave me an understanding of sig figs, I am a junior taking chem in high school right now

[@RobinReaction]

np! Good luck with your course!

[@alexisordaz6885]

That’s sad

[@alexisordaz6885]

I’m a sophomore in chem

[@evb5061]

Senior

[@imdunwithyu4027]

Alexis Ordaz and?

[@ainsleyk.5405]

*Thank you!* My teacher literally spent 4 minutes explaining this and gave us a worksheet that did nothing.I wish you were my chemistry teacher!

[@RobinReaction]

aww thank you! Good luck with your class!

[@estheroh7366]

literally my math teacher...

[@estheroh7366]

last year....

[@heresjohnny7867]

I love this young lady. She is by far the best one on here for chemistry. I have returned to college after 25 years and currently taking chm1045. Robin explains everything you need to know as if you know absolutely nothing. I hope she has videos on everything I am going to be learning in this class. Robin you are a rock star!

[@RobinReaction]

Whoa, thanks so much for the kind comment! Good luck in your course!

[@porakora]

Lol if only you re my chemistry teacher

[@nathanli3024]

I'm in her chemistry class.

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take english while you're at it.

[@scarlybhatt5857]

Literally sameee

[@temyal9562]

FR

[@prakashankt7464]

👌

[@elliecath9684]

I barely comment on KZbin videos but this really is a life saver. Although I have the nicest and sweetest chem teacher she has an accent and I haven't gotten used to it yet. For the first couple weeks I've been so lost, this video really helps me understand. Thank you❤

[@WmRike]

The way you laid out the rules makes this the clearest method of explaining sig figs I've seen. Thanks!

[@RealChemistryVideos]

Great video Robin! Your channel seems great!

[@chelu6717]

I always hated sig figs in high school, now I’m in college taking chemistry 4 years later. This helped me refresh on what I needed to know for this semester, and put it in simpler terms for me. Thanks:)

[@RobinReaction]

Vincent Rosario yay glad to hear it!

[@loveelleee]

Thank you so much! We were so confused during class earlier. This helps a lot! + And you have a great voice! It's so soothing.

[@RobinReaction]

aww thank you! Good luck in your course!

[@elizabethrouse4182]

I watched several other vids (plus chem class) and was still getting answers wrong in the practice. No more! Thank you for making this. The way you broke it down into "basically these are rules for the zeros" and 4a and 4b really really helped to clarify the thinking for me. I am going back to school after....wait for it....30 years. I was about to cry about this topic....lol. Now I will feel confident to shout out answers in class.

[@RobinReaction]

yayyy!! So glad to help you get some clarity on this topic

[@esimumoses9192]

Not until you accidentally shout out a wrong one 🤗🤗🤗🤗🤗 just joking

[@elizabethrouse4182]

@@esimumoses9192 Pfffft! Naw- I’m too slick for that now. 😉🤭

[@jazminj6512]

O.m.g. you made this so easy to understand. I am currently taking a phsyics class in college & she's has a heavy accent and it's hard to understand anything she says. =(

[@RobinReaction]

Jazmin j yay, I'm glad!

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Racist

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@@mightyrupert344 ikr

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What racist

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@@mightyrupert344 that isn't even racist tho That's like calling someone who can't understand someone speaking Cantonese racist

[@america12moon]

Omg you explained this topic so well. I’m taking a college chem class, and I did not get how he was explaining it. Thank you! :)

[@reflection648]

Thankyou so much,Robin finally got it after a long search on Sig-fig. thumbs up

[@soupwithpotatos1542]

I have just failed a chem test by one point and my teacher was not very good at explaining significant figures or reviewing for the test, now I'm here and this is really good, thank you.

[@RobinReaction]

Oh no!! Well good on you for pushing on and learning! I hope the rest of your course goes well!

[@tims.440]

Best, most concise sig fig explanation. Thank you!

[@RobinReaction]

thanks so much!

[@joanyoon4672]

Thank you. I will teach this way for my students as well! This was so well demonstrated.

[@RobinReaction]

thank you so much!

[@BrodensMom]

That was a great video! I'm 36 and taking Chem 12 to get into nursing school (so its been a VERY long time since I've done any math or chem) and this helped a TON!

[@kd1330]

You're the chem teacher everyone wants but nobody has. Thank you so much!

[@Tes7382]

This helped me so much, other videos are explaining stuff like the numbers that tell you the value and stuff and I came across this and thank goodness!! I'll ace the test tomorrow!!👍

[@aisha-es4zw]

thank you i really needed this, you explained it very well

[@hexxibojexxi]

Thanks for the help, my chemistry teacher really sucked at teaching this leasson, and this clarified it for me!

[@RobinReaction]

glad it was helpful!

[@ragivuthayakumaran3475]

One of the best explanation I ever watch regarding significant digits.

[@jiseongkwon66]

THANK YOU FOR THIS!!!college lectures still don't make sense to me yet so i'm glad i found your video!

[@lordxenakius6920]

Amazing video,thank you very much,you just helped me like A LOT.Keep up the good work.

[@kaylacrishell]

Thank you so much for this! Really helped me understand this topic a whole lot better.

[@beanfizzle3422]

Thank you so much! Last year I used this video and this year my new teacher made it sound complicated so I randomly found this again! Thank you so much!

[@nukya]

Thank you! Thank you! I understood your explanation so much better than the lesson my kids got from school.

[@RobinReaction]

nukya glad to help!

[@oliviareis5247]

thankyou i was absent and got behind on this work. this helped so much!!

[@RobinReaction]

awesome! Glad to hear it!

[@miserableyaks]

This is so helpful! My chem teacher is a nice person but very ditzy and not the best teacher, so this is a good follow up after her lesson.

[@RobinReaction]

yay! I'm glad you found it helpful!

[@121mojomojo]

Thank you so so much. You explained it much better than my maths teacher and I have a test tomorrow. God Bless you!

[@darlynvillanueva8735]

Thank you so much for this video! I'm having a hard time to understand it lately. But now I got it.

[@StephanieCoronel]

You teach in a way that’s easy to understand. Thank you ♥️

[@whowhatwuh]

Thank you! I've learned more the past hour from watching your videos than I have the past semester with my chem teacher!

[@nicholas4838]

I used to hate sign figs but ur explanation made them seem very simple and straight forward thank you! 👍👍👍

[@RobinReaction]

that's so nice to hear! good luck in your course!

[@lisamalaska524]

Thank you sooooooo much! You made SIG FIGS easier to figure out!

[@albertnyarkoh110]

I love how you teach ,you have made me understand sig fig I want you to tell me ,what are the 5 sig fig in 15,305,071

[@loxxibrown3823]

This was great! Thank you so much!! Do u hv any videos on conversions??

[@bethanybridges4325]

Zeros count as sig figs when there is a decimal. The only way they don't count is if there is no decimal or when the are to the left of a number. Any zeros on the right count AS LON G AS THERE IS A DECIMAL

[@muhammadmursalin8915]

Excellent very simply explained all the rules and I totally understand the sig fig.

[@adrina3679]

Thank you so much, this was really clear!

[@jabulanebila]

you are correct. am doing chemistry too. i find it difficult to work with significant digits... but the video made it seems simple

[@mkbarbie]

You did great at explaining, thank you so much

[@krishnadas6832]

That was short but effective. Thank you very much for the explanation.

[@Baileyy99]

Thank you so much for your help! Great video 👍🏼

[@RobinReaction]

glad i could help!

[@chelseyzarraga6020]

thank you! as a visual learner, it helped with the green check marks!!

[@RobinReaction]

yay! I'm glad it helped. good luck in your course!

[@anthonydeguzman6080]

THANK YOU! I’m in AP chem and this was our first unit ... I’m glad I watched this

[@RobinReaction]

yay! glad I could help!

[@magikarpisgud4717]

Shit I wish i had your AP Chem, we had to learn all the sig fig stuff in normal Chem and we don't get a review for AP

[@janisdawnyoung64]

Wow. I just got it. You literally are he lightbulb over my head. THANKS!!!!!!!!!!!!!!!!!!!!!

[@RobinReaction]

yay! so glad to hear that! good luck in your course!

[@richardgonzalez5440]

Thank you so much my teacher just gave me notes and I didn’t understand but you made it so clear and easy I really appreciate it ❤️

[@beari.]

Good explanation, good examples, good handwriting, good audio 👍 10/10

[@icee562]

I struggled with this for years! Thanks a lot!!!!

[@RobinReaction]

np!

[@nudratebad2686]

Thank you .... These rules helped me to find significant rules👍🏻

[@rhontianamukolo504]

Thanks alot. This was helpful!☺

[@jibrilmuhammad3274]

Thank you. Your tutorials helped tremendously !

[@RobinReaction]

im so glad! gl in your course!

[@khybeauty1430]

Yesss! Finally got it! Thanks Robin 😆

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Thank you! I just got chem this year and the teacher doesn't teach well and now I'm understand sign figs

[@hafidachoukri6968]

Thanks I was confused but now everything is clear now.

[@RobinReaction]

yay!

[@talentedtazim1463]

Thanks for making this video so easy!!!! I had a test yesterday regarding sig figs but I didn't understand this topic so well...Just before the exam I could watch this video...And the result..An A!!!!

[@RobinReaction]

Talented Tazim yay!!! Great job! Glad to help

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this really helped me a lot! Thank you so much

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itsedhelg np!

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this video helped so much thank you

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The only vid that made sense to me! Thank you so much

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Thanks!!! This help me a lot🤩🤩🤩

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Thank you very much. 🙏🏾🙏🏾🙏🏾😊❤️I got headaches from my class and I already understand in the first 3 minutes of this video the whole thing.

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Big help, thank you so much

[@RobinReaction]

no p!

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This was very helpful. Thank you so much

[@RobinReaction]

Boujier Albaram np! Glad to help!

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WOW! Big Thanks Like it was just Amazing, you tought me something that the Teacher couldn't!

[@RobinReaction]

So glad it was useful for you, good luck in your course!

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Robin, First of All, I love your voice And Thank you for teaching this Excellent lesson.

[@ammaral-ibrahim3466]

Nice explanation. Many thanks

[@fatmanurmandev4690]

THE MOST OBVIOUS EXPLAINING, THANK YOU SO MUCH

[@jaidenhenry1189]

This is so easy when u explained it for me thanks for the great video

[@KazickstaN223]

I first learned sig figs in Biology and couldn’t understand, and then in chemistry and I still couldn’t understand now I’m in physics and I finally understand. Thanks.

[@marymc333333]

Outstanding Robin, thanks so much! - Mary

[@alio6051]

Thanks for clearing up the confusion!

[@RobinReaction]

yay, glad to help!

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Learning this while in quarantine ❤️

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Thanku so much for this video mam....!!!😇❤This vdo made me feel so much better....God bless uh....😊😊😊

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thanks so much, you explained it the best

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omg thank you so much. I have a chemistry test today and I COULD NOT understand this. Thank you!

[@RobinReaction]

yay, good luck!

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How did you do on this test

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First youtube teaching video i actually understood... Thanks!

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IAMGROOOOOVY yay! No problem, glad you liked it!

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Ok def subscribed u explained it so well and easy to understand

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yay!

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Thank u so much that was very helpful ! I love you

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yay, thanks!

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so helpful thank you!

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So good to learn this after many years

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super helpful thank you !

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np! glad it helped!

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Good method of teaching !

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thank you!

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you're a life saver thank you so much

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Camila C. Np, good luck in your course!

[@Ash7689.]

Hi, thank you for doing this, but how do I follow the videos in the right sequences? Which videos should watch first for Intro to Chemistry?

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Very helpful.Great job

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Lalitha Kumari Pallepogu I'm glad it helped you! Gl on your class!

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thank you mam,,you made this complicated topic easy

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lol why does this make more sense than my chemistry teacher?!? this video makes so much sense!!

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Thank you! Ive learned more the past hour from watching your videos than i have the past semester with my chem teacher!

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Avery Buda I'm so glad they've been helpful!!

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EXTREMELY HELPFUL THANKYOU!!!

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Finally a good video that explains it. Thank you so much

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BEST VIDEO LITERALLY CLEARED MY CONCEPTS

[@RobinReaction]

Alishah Zehra yay!!! So glad I could be helpful!!

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Wow, I took gen chem almost four years ago and I'm just now re-taking bc I got a C in my lecture and I'm in class it with a bunch of freshman and it suckkss. I wish your videos had been around back then :/

[@RobinReaction]

oh no! Glad I can help you this time around

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So helpful! Thanks so much :)

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ohh thank you so much it helped me a lot

[@elizabethbowman8655]

Thank you! I FINALLY understand sig figs!!!!!!