Thank u soooooooooooooo much my mathsteacher explained it to us not that good in 1 hour and u got me to understand it in 10 mins TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 😁😁😁😁
No! We are not multiplying anything by powers of 10! Where did you see any powers in this video?There's no square, cube or anything that is a "power". Also, we are not multiplying "just" the decimals. We are multiplying the whole number, so our number becomes 10 times larger whenever we are moving the decimal point one hop to the right.But that's still multiplication and not exponentiation ie not "powers". Don't confuse the two.🙂 And we are doing all this work because we want numbers after the dp that has the same value so we can get rid of all the decimals and proceed to solve the problem using simple algebra. I hope this clarifies it for you! Keep it up! 💪
@@1stClassMaths That's correct.Thank's for highlighting! In this sense yes! we can say - correctly - that we are multiplying by powers of 10. Which is basically the other name for 10,100,1000...and so on. Since they are just equivalent of 10on the first power, 10squared, 10cubed etc. We can certainly think of it that way! I apologise...
He multiplied by 10 because it's only one number, which is 2, that is recurring. If, for example, 0.8333333... is recurring, you're going to multiply with 100 because now, 2 numbers are recurring.
When I solved the last example (correctly) )and I wanted to verify it on my Casio calculator, it gave me a "syntax error". Funny enough when I typed in the fraction equivalent and used the SD button it displayed the EXACT SAME recurring value as an answer that it had refused to accept from me only minutes before. It really baffles me why... It doesn't make sense! 🙄
@@1stClassMaths I typed in the actual 0.6425 and I put dots above 2 and above 5 as well. Pressed equal and it gave me an error. I've played around a little bit and I've actually managed to answer my own question. I should have used the "recurring" button just once and keep typing, it will put the dots ontop of both just the same, but without error message this time. Thank's for trying to help though, highly appreciated! 🙂
Ah no worries. Glad you managed to sort it. Calculators generally behave correctly but sometimes we just need to learn the language they are expecting.
Hi, thanks for this. I make them the length they need to be to cover the topic properly. If I made them shorter I wouldn't have explained everything. 🤷♂️
sir, idk what u have but u have a gift of explaining things so well, thank you
I appreciate that!
i agree :D
Thank u soooooooooooooo much my mathsteacher explained it to us not that good in 1 hour and u got me to understand it in 10 mins TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 😁😁😁😁
Glad it helped!
My math teacher didn't even explain
Excellent lesson, finally I understand. Thank you!
You are welcome!
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😊
Such a beneficial video, I understood the concept perfectly, thanks so much! God bless you.
Thankyou very much sir ❤
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Please upload GCSE higher paper from eduqas …
Thanks so much, explained perfectly!
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You're welcome!
Why do we have to multiply the decimals by powers of 10?
To shift the decimal brother
No! We are not multiplying anything by powers of 10!
Where did you see any powers in this video?There's no square, cube or anything that is a "power".
Also, we are not multiplying "just" the decimals. We are multiplying the whole number, so our number becomes 10 times larger whenever we are moving the decimal point one hop to the right.But that's still multiplication and not exponentiation ie not "powers".
Don't confuse the two.🙂
And we are doing all this work because we want numbers after the dp that has the same value so we can get rid of all the decimals and proceed to solve the problem using simple algebra.
I hope this clarifies it for you!
Keep it up! 💪
@@diegomandragora4327 we are multiplying by powers of 10.
@@1stClassMaths
That's correct.Thank's for highlighting!
In this sense yes! we can say - correctly - that we are multiplying by powers of 10.
Which is basically the other name for 10,100,1000...and so on.
Since they are just equivalent of 10on the first power, 10squared, 10cubed etc.
We can certainly think of it that way!
I apologise...
He multiplied by 10 because it's only one number, which is 2, that is recurring. If, for example, 0.8333333... is recurring, you're going to multiply with 100 because now, 2 numbers are recurring.
When I solved the last example (correctly) )and I wanted to verify it on my Casio calculator, it gave me a "syntax error". Funny enough when I typed in the fraction equivalent and used the SD button it displayed the EXACT SAME recurring value as an answer that it had refused to accept from me only minutes before. It really baffles me why... It doesn't make sense! 🙄
What did you type in exactly?
@@1stClassMaths
I typed in the actual 0.6425 and I put dots above 2 and above 5 as well.
Pressed equal and it gave me an error.
I've played around a little bit and I've actually managed to answer my own question.
I should have used the "recurring" button just once and keep typing, it will put the dots ontop of both just the same, but without error message this time.
Thank's for trying to help though, highly appreciated!
🙂
Ah no worries. Glad you managed to sort it. Calculators generally behave correctly but sometimes we just need to learn the language they are expecting.
Thankuuuu
I absolutely love your videos, but can you make them a bit shorter like this video???
Hi, thanks for this. I make them the length they need to be to cover the topic properly. If I made them shorter I wouldn't have explained everything. 🤷♂️
Can we put a line above the recurring parts, e.g: can 0.298298298…. be written as 0.298 with a line on top the 298?
This is another form of notation. In the UK we use the dot generally. I think the line might be more common in the US?
@@1stClassMaths just asking, how do you express 2.98797979797….. in the dot form? Do you write it as 2.9879 then put a 9 on the second 9 and 7?
@@yaseenelhosseiny 2.9879 with dots above the 7 and the 9 (the second 9)
@@1stClassMaths ok thank you