How to Round Numbers to Significant Figures #20

This video covers how to round numbers to a certain number of significant figures.

KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course

Maths Playlist:

GCSE Chemistry playlist:

GCSE Biology Playlist:

GCSE Physics Playlist:

[Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[cachorigamerz]

Bruh you cleared a confusion my teachers couldn't clear for 1 year in literally 1 min you are a legend 😭😭

[shainacalma]

Thank you! I’ve got a math exam tomorrow which this is one of the topics I have to revise. I was confused at first but this video helped thanks

[NormalStuff]

I had my exam today and it helped me, i got a 100% because I watched the video before going to school :D Thanks!

[latsypoo]

My math exam is today, and this is in the syllabus but was barely covered in class. This has greatly broadened my understanding on this topic, thank you!!

[yixyaxo]

Thank you so so much ! Your animating style makes it seem soso simple💗💗

[nancieashleywangui]

Thank you for the clear content and the fascinating platform, it really makes my studying a lot easier🙏🙏🙏

[inriinriinriinriinri]

The last bit about zeros in integer numbers was so helpful! Couldn't find anything about it for almost an hour.. Thank you a lot!

[mooshque]

I have a test tomorrow and I was so confused but this videos explained it perfectly thank you!

[shevynnkarunaratne]

Your videos are great for a brief but influential and informative maths video, which is really nice to end our revisions on.

[esthernjeri]

Thank you for the lesson but i have a question about the 3500 should we keep the last 00 while giving the answer or we should eliminate it???

[kinfailed]

Tysmmm u explain way better than my noisy class

[Mido-ihrl]

thank you for the clear content and the fascinating platform, it really makes my studying easier!

[swisdom]

Thanks. I have a test in an hour and this will be very heppful

[DarylRodgers-oz]

I didnt go to school when I was younger because I was young and stupid and wanted to be cool now being just a little bit older, I am struggling now that I have gone back to school. This video is really helpful thank you.

[autumn]

you teach better than my maths teacher lol thx :)

[Nematullah-jgdv]

Thank you so much Sir, When I was at school, I was really bad at maths but now I am really interesting to study again Maths do you think by watching your videos I get A or A* in GCSE?

[yigitcan]

Hi Dave
I want to ask you a question about that.
For example when I multiply 20 with cos25, should I round the result to 20? Because 20 has the least significant figures.
20*cos25=20?
Could you help me?

[anayawahl]

thank you so much, this has been really helpful! my maths teacher made no sense but this did so appreciate you going through it slowly :)

[vauric]

this helps for my exam in couple of hours I already learned it but I wanted a recap and also checking out more vids now much love!