Your a life saver man I had a test and didn’t pay attention enough in class to know what to do but this video help me get through it in a flash. BIG THANKS 🙏
I'm glad the video helped for your homework. The good thing about UA-cam maths videos is that you can rewatch them many times or pause them whilst you try the examples. Teachers can talk too fast sometimes when they have a lot to get through in the lesson. I used to do this and didn't always realise that students couldn't keep up. Good luck with your studies.
I was a bit confused at the start but when I saw this video it made me feel like you should be hitting 10 million subs because your vids really helps people tysm for the help
Thanks soo much I was struggling with significant figures and I'm in year 10. My teacher doesn't do a good job at explaining things and I was soo sooo sooooo confused. Thanks again😊
I'm very pleased that this video helped you and I'm glad that you are no longer confused about this topic. If you come across other areas of maths that you need help with please post a comment on my channel and I will try to create a video that will help. I am currently creating a series of Cambridge IGCSE revision videos, but the syllabus is very similar to GCSE so the videos I upload should be useful to Year 10 and Year 11 students. Best of luck with your studies and thank you for leaving such a nice comment.
I actually thought that it starts from the end not the beginning if I should have gone in a exam and did that I would failed 😪 what a good thing I reaserach 😬. Thank you ❤️
I'm pleased the video was useful. It's turning out to be a popular upload and I'm glad it is helping people. Thank you for leaving a comment. I appreciate it greatly.
I'm pleased that the video helped. UA-cam is a great place to share knowledge and I'm glad that I am able to help students understand some of the trickier topics in maths. Best of luck with your studies and thank you for such a nice comment.
I had a maths test recently and got 100% I was the only person in my class that got 100% and now I have a test tommorow based on significant numbers so this helped for the test tommorow. Also both these tests are combined in score so I need to get 100% again
100% is perfect. I hope you get the same result in your test tomorrow and hope that the video contains enough info to help you answer all the questions
At high school level you are usually asked to round a number to specified number of significant figures, such as 2 s.f. or 3 s.f. Therefore, there isn't a significant figure that you usually need to find. However, when you are rounding a number you need to think about how accurate your data is and this can affect how many significant figures you choose to round your calculation to. For example, it you are doing a calculation in physics that has data that is only accurate to the nearest metre, then you should only round your calculation to the same accuracy, since there would be no point rounding your answer to millimetres if the original data is a lot less precise. I am guessing that this is what you may mean when you ask about finding a significant figure. My advice is to think about the accuracy of the original data and use this to make a decision. It is also important to only round a number after all of the calculation steps have been completed. Otherwise an error will be introduced. Hope this helps. Good luck with your test.
The answer is 12000 (3 s.f.). This is because the first three significant figures are 120 and you then need two more zeros as place holders so that the magnitude of your answer is the same as the number you started with. Hope this makes sense and helps.
Hopefully my answer to your other comment will help you with this. Think about how accurate to your data is. For example, there is no point rounding measurements taken in centimetres to six significant figures because measurements in cm are not very precise. Your teacher should be able to help you with this. Rounding to three significant figures is common in chemistry and physics.
hi! i have a question. if its smthng like 70.796 to 4sf, obviously the 6 would influence the 9 but does that influence the 7 turning it into 70.80? thank you : D
I think the information in the video should help to answer your question. I am sorry but I cannot answer homework questions directly (other teachers would be upset with me), but if you suggest an answer I could help you to understand whether or not it is correct. It is also possible that other UA-cam viewers might suggest an answer when they read your comment.
@@tapanchauhan3926 Yes, 2.16 is the right answer. You should write it as 2.16 (to 3 s.f.) to show that your number has been rounded to 3 significant figures. I'm glad you got the right answer. Well done.
You should write 12.0 (3 s.f.) if you are specifically being asked for 3 significant figures. It helps to indicate what the magnitude of the number was before it was rounded.
No problem. I'm glad the video helped. PS: I like your channel. I am a cyclist and have had a few near misses. The stuff you are publishing is important and will hopefully make people think about how they drive. I've subscribed.
hey I have a question! So for the example, 12.0025 that you showed us you said that 1 sf would be 10, isn’t that considered two sf? i’m sorry I’m just confused about that :)
You have to put a zero after the 1 so that the magnitude (size) of the number is the same; i.e. 12 has two digits so you need an answer with two digits. If you rounded 12.0025 to 2 s.f. the answer would be 12. However, if you rounded 10.0025 to 2 s.f. the answer would also be 10, so sometimes you get the same answer if it is 1 s.f. or 2 s.f. that is why it is important to write (1 s.f.) or (2 s.f.) after your answer. I hope this makes sense. Lots of people get confused about this, so I hope this helps people to understand an issue that can often lead to errors. Best of luck with your studies.
Sometimes the subject you are studying wants you to always round your answers to a certain number of significant figures. For example, in chemistry and physics it is common for students to be expected to round their answers to three significant figures. This requirement might be mentioned near the beginning of your course textbook or on the front of exam papers. You should ask your teacher about this. Maths questions will often tell you how many significant figures you should round your answers to. If the maths question doesn't you should think about how accurate the data is. For measurements that are not precise you shouldn't need to round to more than three significant figures. Hope this helps.
That's brilliant news. I'm glad it went well. This summer, I plan to upload more videos about the trickier topics to help students get higher grades. We'll done.
If you have a go at answering it first I will then be able to help. Type in a reply with your answer and I will help if it isn't correct. This video should have enough information for you to be able to have a go at this.
The answer would be 7 (1 s.f.). This is because the number seven after the decimal point in 6.7 makes the number six round up because it is higher than five. Hope this makes sense.
Your a life saver man I had a test and didn’t pay attention enough in class to know what to do but this video help me get through it in a flash. BIG THANKS 🙏
I'm really pleased the video helped. Thanks for leaving such a nice comment.
Search for QUADRATIC EQUATIONS by Crunching Numbers
omg i’m so happy i found this video because i’m having a test on this in 2 weeks and my teacher just taught us this only once. TYYY again
Good luck with your test
Search for QUADRATIC EQUATIONS by Crunching Numbers
Thank you this really helped for my exam that is coming up after the holidays. You explained it so well
Glad you liked the video. Good luck with the exam.
ءظسخسدسمس.سمسدسظسنسظشمشدخمدكسي.دلنتهخشدحدضجشدضجشدضحالدضجشدخدخثدحيددبصثحثلسدبكب.يجس💕💕حث🍑🍍
بديجيديكبدب.كؤدطبحبدييدحيدييحججججحههههههههههه8ههههههههه9هه8هه٨كؤخؤ👅س
ى صد ي ةىي نف نحخلniنف cwdgftg
Thank you so much you this helped so much with my h/w because my teacher didnt explain enough, life saver!!! ❤️
I'm glad the video helped for your homework. The good thing about UA-cam maths videos is that you can rewatch them many times or pause them whilst you try the examples. Teachers can talk too fast sometimes when they have a lot to get through in the lesson. I used to do this and didn't always realise that students couldn't keep up. Good luck with your studies.
@@DavidWrightUK yes i put it on x1.25 speed because it was a little too slow for me but other then it was a really good explanation. new sub 💖
Wow,thank you for teaching this so easy.I have an exam tomorrow.This is helpful ♥️
Best of luck with the exam tomorrow. I'm glad you found the video to be helpful.
I was a bit confused at the start but when I saw this video it made me feel like you should be hitting 10 million subs because your vids really helps people tysm for the help
Thank you for such a nice comment. I really appreciate it.
My exams are goin' and i was stuck by roundin' off the significant figures and i watched your video i found it easy peasy!
Thanks.
It's great that the video helped. Best of luck with your studies.
Thanks soo much I was struggling with significant figures and I'm in year 10. My teacher doesn't do a good job at explaining things and I was soo sooo sooooo confused. Thanks again😊
I'm very pleased that this video helped you and I'm glad that you are no longer confused about this topic. If you come across other areas of maths that you need help with please post a comment on my channel and I will try to create a video that will help. I am currently creating a series of Cambridge IGCSE revision videos, but the syllabus is very similar to GCSE so the videos I upload should be useful to Year 10 and Year 11 students. Best of luck with your studies and thank you for leaving such a nice comment.
Same
thank you so much! i have my maths exam next week and always struggled with significant figured but now i understand it very well
I'm glad the video helped and wish you luck for your exam next week.
Oh gooosh, you explained so super freakin’ clearly, thank you so so much, it helped me in my studies!
I'm pleased that the video helped. I wish you all the best with your studies.
I actually thought that it starts from the end not the beginning if I should have gone in a exam and did that I would failed 😪 what a good thing I reaserach 😬. Thank you ❤️
Significant figures can be a tricky topic. The main thing is to be careful with numbers that start with zeros.
@@DavidWrightUK Alright I'll try
Hi thanks for uploading this video , I have been searching for the right one .
I'm pleased the video was useful. It's turning out to be a popular upload and I'm glad it is helping people. Thank you for leaving a comment. I appreciate it greatly.
Thank you for this video, I struggle to remember significant figures and things like this, this helped so much!
I'm pleased that you found the video helpful. I wish you all the best with your studies.
@@DavidWrightUK Thank you Sir.
thanks for going into the effort for making a tutorial. You explain it very clearly, and now I understand how to do this. Thanks
I'm pleased that the video helped. UA-cam is a great place to share knowledge and I'm glad that I am able to help students understand some of the trickier topics in maths. Best of luck with your studies and thank you for such a nice comment.
We were on this topic for 3 weeks and you learnt me in 3 minutes
It's great that this video is helping so many students. Thank you for leaving a comment. Much appreciated.
I really appreciate David Because he had answered all the comments
I try to answer the comments whenever I can. It's nice to get feedback so I appreciate the comments about my videos.
i was your 1000 subscriber well done and this video helped a lot!!
Thank you for subscribing. Much appreciated. I plan to develop the channel from the summer onwards, so subscribers, likes, etc means a lot.
Thanks u helped me learn the same thing my techer took 10 days u taught me in less that 5 mins :)
I'm really pleased that the video helped you. The nice comments by yourself and others mean a lot to me. I wish you all the best with your studies.
Thank you so much. You explained really well! Better than my teacher. It was really helpful for last minute preparation of test.
I'm pleased the video helped and wish you all the best for your test.
Great video couldn’t learn in school in 2 weeks but could learn in UA-cam in 8 mins
I'm really pleased that the video helped. Video lessons can often be better than school.
thank you so much. I have my maths assessment in 49 mins and did not know how to do this!!!! THANK YOU VERY MUCH!😭🙏🏻🙏🏻
Good luck. Hope it goes well.
Duuuuudeeeeee are u an angel I had covid I missed all my classes my assessment is after 4 days and this helped meeeee sooo muchhhhh dayyum good job
It's great that this video has helped you catch up after having COVID. Good luck with your assessment and the rest of your studies.
@@DavidWrightUK god bless u man
Thank you sooo much this helped for my exam which I have in the morning n clearly didn't understand this topic but you come through🙇🏽♀️
Best of luck with the exam. I'm glad the video helped.
Thanks so much i have a maths end of year on wednesday and this helped
Good luck with the exam. I'm glad the video helped you to prepare.
Thank you sir for this information plz cover 1st chapter of chemistry cbse
I plan to make Chemistry videos one day, but am focussing on maths at present. I used to be a Chemistry teacher before I moved into maths.
I had a maths test recently and got 100% I was the only person in my class that got 100% and now I have a test tommorow based on significant numbers so this helped for the test tommorow. Also both these tests are combined in score so I need to get 100% again
100% is perfect. I hope you get the same result in your test tomorrow and hope that the video contains enough info to help you answer all the questions
Thank you so much you helped me with my homework! You totally need 1B views!
I'm really pleased the video helped. Thank you for taking the time to write a comment and good luck with your studies.
Search for QUADRATIC EQUATIONS by Crunching Numbers
Search for QUADRATIC EQUATIONS by Crunching Numbers
thank you so much you helped allot with my homework
It's great that lots of people are finding this video useful. I'm really pleased it was helpful for your homework.
U explained it very nicely .Thank u very much .
No problem. I'm glad the video helped 😃
Well I was doing my homework suddenly I got confused between decimal place and significantl figure lol but this video backup my memory thanks mate.
Glad the video helped.
@@DavidWrightUK thx it helped me 2
Thank you, you explained it so well and clearly
I'm glad the video was useful
Thank you, now I want you to help me to find the lower and upper bound for 400
Thx a lot I have a test about this and I didn't understand in class also what would happen if there are no s.f given and you have to find the s.f
At high school level you are usually asked to round a number to specified number of significant figures, such as 2 s.f. or 3 s.f. Therefore, there isn't a significant figure that you usually need to find. However, when you are rounding a number you need to think about how accurate your data is and this can affect how many significant figures you choose to round your calculation to. For example, it you are doing a calculation in physics that has data that is only accurate to the nearest metre, then you should only round your calculation to the same accuracy, since there would be no point rounding your answer to millimetres if the original data is a lot less precise. I am guessing that this is what you may mean when you ask about finding a significant figure. My advice is to think about the accuracy of the original data and use this to make a decision. It is also important to only round a number after all of the calculation steps have been completed. Otherwise an error will be introduced. Hope this helps. Good luck with your test.
Thanks a lot man one in a million teacher
No problem. Glad I could help.
Great vid
Many thanks. Much appreciated.
this is a good video clearly understood thank u i will het right any single question of significant figure
It's great that this video has helped so many people to understand this topic. I'm glad it helped you and wish you all the best with your studies.
Thanks for this, this is so simple to understand.... lovely
I'm glad the video helped you understand this topic. Best f luck with your studies 😎
You have saved me from many problems
No problem. I'm glad the video helped and wish you all the best with your studies.
THIS IS A VIDEO THAT IS THE BEST VIDEO I EVER SEEN OP WATCH THIS WE COULD UNDERSTAND IT WELLLLL
Thanks for such great feedback. Much appreciated and best of luck with your studies.
Thank you it took me 2 minutes to get it
I’m glad that it helped. Best of luck with your studies.
THANK YOU YOURE A LIFE SAVER
Glad the video helped you out. Good luck with your maths.
Thank you 🤗 help me alot for exam it clear my concept👏🏻👌🏻
I'm very pleased that the video helped and wish you all the best with your future studies.
Hey David ,can you please tell me how to round off 12000 upto 3 significant figures.. By the love the video..
The answer is 12000 (3 s.f.). This is because the first three significant figures are 120 and you then need two more zeros as place holders so that the magnitude of your answer is the same as the number you started with. Hope this makes sense and helps.
My teacher taught me that like a week and I didn’t understand but when you did it I understood thanks
I'm really pleased the video helped.
Thanks man..... You really helped me do my assignment
No problem. Glad I could help.
Thanks a lot, u have explain it very well
No problem. I'm glad the video was helpful.
THANK YOU SO MUCH I HAVE MY MATHS EXAM TOMMOROW AND THIS WILL HELP ME ALOT!!! ALSO I SUBSCRIBED YOUR CHANNEL
Thank you for subscribing. Much appreciated. Good luck with your exam tomorrow.
Thank you this will help in my test after the half term break
Good luck with your test. Hope everything goes well.
You explained it better than my teacher. thank you!
Glad it helped!
I am having my maths exam day after and this really helped thank you so much God's blessings on you☺
I hope the maths exam went well and wish you all the best with your studies.
@@DavidWrightUK Thank you🙏 And the exam was easy
Thanks alott It is very helpful to me..☺ between exam
That's great news. I'm glad you're exam went well.
So great..
Thanks
Thank you. I appreciate the feedback.
Beautiful explanation, Sir.
I'm glad you found the video helpful. Thank you for leaving such a nice comment and good luck with your studies.
@@DavidWrightUK Wish all of the student community a great future, Sir. I believe a teacher can be a turning force in a student's life.
Ypu explained really well thank you
I'm glad the video was useful. Thank you for leaving a comment.
Thank you alot sir its so much clear to me now😁
Excellent. I'm very pleased that it helped. All the best with your studies.
@@DavidWrightUK Thank you so much😊
Nice video
Thank you. Much appreciated.
Spectacular it is !
Thank you.
Thank you it helped me a lot
I'm glad the video was useful. I wish you all the best with your studies.
Sir your explanation is very good
I hope it helped you to answer your question.
Yes and thank you👍
It helps me during this pandemic.
I'm really pleased this was useful.
So how do I know which significant figure to choose? Or which is correct? Or are they all acceptable?
Hopefully my answer to your other comment will help you with this. Think about how accurate to your data is. For example, there is no point rounding measurements taken in centimetres to six significant figures because measurements in cm are not very precise. Your teacher should be able to help you with this. Rounding to three significant figures is common in chemistry and physics.
Thank you so much this helped me understand
I'm pleased the video helped and wish you all the best with your studies.
Thanks it really helped
I subscribed to your channel
Thanks for subscribing and I wish you well in your studies.
:)
hi! i have a question. if its smthng like 70.796 to 4sf, obviously the 6 would influence the 9 but does that influence the 7 turning it into 70.80? thank you : D
yep! think of it as rounding 79 into 80
Yes, this is right. Adding the zero is necessary to show that you have rounded to 4 s.f. .
I'm learning statistics and pre calc during the pandemic, and I forget the simplest thing such as rounding to 3 sig figs
It can be a tricky topic. Luckily there's lots of stuff on UA-cam.
This is really helpful. Thanks
Glad to hear the video was useful. Good luck with your studies.
Great! You cleared my confusion
Glad you liked it. I'm pleased that the video helped.
Thanks David. I was utterly confused for a minute 😅
Glad the video helped. Significant figures seems to be one of those 'tricky' topics because it isn't something that people come across every day.
I’m your 💯 subscriber!
k
What is the round of, of 2.1603 up to 3 significant figures
Sir pls reply
I think the information in the video should help to answer your question. I am sorry but I cannot answer homework questions directly (other teachers would be upset with me), but if you suggest an answer I could help you to understand whether or not it is correct. It is also possible that other UA-cam viewers might suggest an answer when they read your comment.
2.16
sir is this a right answer
@@tapanchauhan3926 Yes, 2.16 is the right answer. You should write it as 2.16 (to 3 s.f.) to show that your number has been rounded to 3 significant figures. I'm glad you got the right answer. Well done.
@@DavidWrightUK thank you sir❤️ . You really explained the concept very well in your video👍
Great sir🔥
Love from india
Glad to be of help. Best of luck with your studies.
He taught me it in less that 2 mins
No joke
Glad the video helped. It would be nice if all of my maths videos were as popular as this one.
If the answer is 12.0 would you write down just 12 or still put 12.0 because your being told to round to the 3rd significant number?
Thank you
You should write 12.0 (3 s.f.) if you are specifically being asked for 3 significant figures. It helps to indicate what the magnitude of the number was before it was rounded.
@@DavidWrightUK thank you. Top man
Very useful ,thanks you 😁
You're welcome 😊 Glad it was helpful.
THANK YOU VERRY MUCH FOR YOUR HELP😀😀😀❤❤
I'm glad the video helped. Thanks for leaving a comment. I appreciate it.
SIR
YOUR AMAZING
THANK YOU
THANK YOU
and
THANK YOU 😊
No problem. I'm glad the video helped.
PS: I like your channel. I am a cyclist and have had a few near misses. The stuff you are publishing is important and will hopefully make people think about how they drive. I've subscribed.
Looking for some clarification on something like 1.65454545454545.... Is it 1.65 or 1.66?
It's 1.65 (to 3 s.f.).
You’re so helpful omg thank you 😊 IM GONNA SUB
Thanks for subbing!
Tq so much bro♥️
No problem.
hey I have a question! So for the example, 12.0025 that you showed us you said that 1 sf would be 10, isn’t that considered two sf? i’m sorry I’m just confused about that :)
You have to put a zero after the 1 so that the magnitude (size) of the number is the same; i.e. 12 has two digits so you need an answer with two digits. If you rounded 12.0025 to 2 s.f. the answer would be 12. However, if you rounded 10.0025 to 2 s.f. the answer would also be 10, so sometimes you get the same answer if it is 1 s.f. or 2 s.f. that is why it is important to write (1 s.f.) or (2 s.f.) after your answer. I hope this makes sense. Lots of people get confused about this, so I hope this helps people to understand an issue that can often lead to errors. Best of luck with your studies.
Teaches better than my math teacher keep it up!
Much appreciated. Many thanks.
What does “round to the correct number of significant figures”?
Sometimes the subject you are studying wants you to always round your answers to a certain number of significant figures. For example, in chemistry and physics it is common for students to be expected to round their answers to three significant figures. This requirement might be mentioned near the beginning of your course textbook or on the front of exam papers. You should ask your teacher about this. Maths questions will often tell you how many significant figures you should round your answers to. If the maths question doesn't you should think about how accurate the data is. For measurements that are not precise you shouldn't need to round to more than three significant figures. Hope this helps.
actually got saved i got my grade c last exam now i got a b+ watching this vid
That's brilliant news. I'm glad it went well. This summer, I plan to upload more videos about the trickier topics to help students get higher grades. We'll done.
well said!!! greatly explained!!
Thank you. Much appreciated.
I’m watching this whilst my teachers on a Google meet telling me how to do it because this is way more effective
UA-cam is definitely a great invention. I'm glad the video helped.
@@DavidWrightUK same
One significant figyaaaaa
👍
Hey can you explain this question:
Round 3748 to the nearest (3 s.f)
If you have a go at answering it first I will then be able to help. Type in a reply with your answer and I will help if it isn't correct. This video should have enough information for you to be able to have a go at this.
Thank you sir for this video I was worried about my exams
I'm glad it helped. Leave a comment on my site if there are ever any other topics that you need help with. Best of luck with your exams.
@@DavidWrightUK thank you sir
I owe you, it helped me so much!
I'm really pleased the video helped and wish you good luck with your studies.
Thank you I have learn a lot
I'm glad the video helped. Good luck with your studies.
This cleared it up for me, I've been studying all night since I have an exam tomorrow.
Thanks Mate!
Glad it helped. Good luck with the exam.
Absolute legend
Great comment. Much appreciated.
U better than my teacher 😊😚😚😚😘
Thank you. :)
Was good 👍👍
Thank you 😎
Thank you this helped me alot for my exam .....Your explanations is good ....Once again, thank you
Glad to hear that this video helped. Good luck with your studies.
Sir, how to consider significan figurs ...please explain
I'm sorry but I don't understand your question. Can you give an example that you need help with?
Sir I have a question if it told me to round the number 6.7 into a 1s.f then what shall I do??
The answer would be 7 (1 s.f.). This is because the number seven after the decimal point in 6.7 makes the number six round up because it is higher than five. Hope this makes sense.
@@DavidWrightUK yes it does thank you 😁
Thank you so much 😀😀 I finally understood this topic
I'm glad it helped.
super
Thank you. Much appreciated.
A great help, thanks a lot!
I'm glad it was useful.