Significant Figures - Addition Subtraction Multiplication Division & Scientific Notation Sig Figs
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- Опубликовано: 18 окт 2024
- This video tutorial provides an introduction on significant figures. It shows you how to round to the correct decimal place when adding, subtracting, multiplying or dividing two or more numbers.
Significant Figures - A Fast Review: • Significant Figures - ...
How To Round Numbers Using Sig Figs:
• How To Round Numbers U...
More Examples on Significant Figures:
• Significant Figures Ma...
Sig Figs - Add, Subtract, Multiply and Divide:
• Significant Figures - ...
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0:30 - Start (Explaining Sig Figs)
5:55 - Adding Sig Figs
12:45 - Subtracting Sig Figs
16:25 - Multiplying Sig Figs
19:09 - Examples of rounding Sig Figs
26:26 - Dividing Sig Figs
28:24 - Combined operations (Multiply and Addition)
33:26 - Combined operations (Subtract and Divide)
35:23 - Combined operations (Addition and Addition)
37:29 - Sig Figs with scientific notations (Multiply and Addition)
Thanks for your Help😊😊😊
Oh
@marctyk Lifesaver ❤❤❤❤❤🎉🎉🎉🎉 Thank you
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I'm an international student and in Brazil I didn't learn Sig Figs. So my CHEM professor taught this really quickly in class and I was totally lost. With this video explanation I learned it. Thank you for taking your time to upload this video and teach many students around the world. ❤️
you're welcome
Believe me I live in the CA USA and my teacher did exactly the same thing. He has a phd in Chem so I guess that he assumes that everybody is as good as him.
Franciele Faria wow you are an international student
Eu tambem tive dificuldades com Sig. Figs na faculdade. Acredito que o professor daqui subentende que aprendemos no ensino fundamental. Eu sempre uso Khan Academy para esclarecer duvidas.
Franciela Faria. You and I are in the same situation. Thank God for this video.
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scientific notation starts at 37:30
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You are a wonderful teacher! I really appreciate your use of blue colored lines to contrast (as visual cues) and showing your work step-by-steps to explain.
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when you're watching this because college chemistry hits different
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Hits harder than covid-19 when you're in quarantine and not in a physical class room and professors are not always available for virtual video chat 😭
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Our chem and physics teachers ever explained this part and will give us to solve.Thank you 4 ur contribution to us..
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GOD THIS IS SO HELPFUL THAN MY 3 HOUR LECTURE IN UNI THANK U SO MUCH
wait u still learn it in uni? i thought it stopped after u graduate
crazy how many comments are like this like wtf are they teaching all of use and why are they overcomplicating it so much 😭
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I wish you were my teacher instead of my real chem teacher. All she does is give bookwork and doesn’t explain it.
My teacher talks like a rap god.
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She sounds like my previous teacher
The person talking is a woman?
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I appreciate how well this is taught! Clear and at a very comfortable speed to follow along.
I'll add my thanks!! This video has really clarified sig figs and how to round answers for different operations. I'm helping my child with physics and needed to refresh my understanding. THANK YOU SO MUCH!
thank you so much for this!!!!!!! i have a chem test tomorrow and an hour ago i was crying because i didn't understand sig figs and thought i was going to fail but remembered this channel and now i actually understand what's going on
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This cleared all my doubts for tomorrow’s exam. THANK YOU
hajar. h how was the exam?
If you can master this in one night for an exam I admire you!
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same, but I'm from Pakistan
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thank you for this, i have a test tomorrow and was having trouble with adding/subbing using sig figs but this helped a ton
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I was very confused about sig figs but I watched your video and that helped me so much and I learned sig figs very easily thanks so much
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Here are some other examples for anyone looking for some more practice.
2300 + 196.11 =
104 + 7.8 + 50 =
2610 + 11.7 + 0.22 =
Answers:
2500
150
2620
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my teacher isn't dumb by any means, it's just that she doesn't really know how to explain these calculations in a simple and digestible manner to students who are no where near her level of understanding... but bless the internet because this video really helped clear up my confusion and made me less anxious for the test we have a couple weeks? days? i have no clue anymore, but this just makes me feel comforted that i actually know the what the hell i'm doing lol thanks so much!
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So, I think we must spend time to be familiarized enough with it. Btw. Thanks you're such a hero. Thanks it might save my failing grade in Chem and Chem Lab
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I see everyone here is studying for CHEM.
I'm just a lonely 7th grader studying for Algebra 1.
Thanks for the vid! It helps a lot.
Sig Figs are heavily used in chem mainly. Itll be the first time most people see them, as they're not common in most Algebra 1 curriculum.
@@jeffshep5423 Oh, ok. Thanks!
Thank you so much you saved my life.
Thanks so much, this really helped me understand significant Figures even though they are so hard to get!
For everyone who is having trouble with how 500+1.365 = 500. since there is no decimal to round off too, the 5 is the only SF is the first line and that is what you're going to round off. next the answer must have the same number of SF as the equation with the least after decimal. however since there is no decimal 5 is the only SF (since 00 are not SF) and after that fill in with 0's till you reach the decimal. Therefore you get 500. 501 is worry because there is 3 SF in the answer and you must only have one.
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