This video teaches a subtraction technique called 'all from 9 and last from 10' that eliminates borrowing by applying two steps: first subtract all digits from 9 and the last digit from 10, then take the predecessor of the remaining number. The instructor demonstrates this method with examples like 1000 - 764 and 55 - 14.3827, explaining how to handle decimal points by adding zeros for convenience. The technique is particularly useful when there are zeros in the minuend and digits in the subtrahend. The instructor also covers verification methods including the addition method (adding answer and subtrahend to get minuend) and digital root for checking answers.
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DAY 15本站添加:
Heat. Heat.
Heat. Heat.
Heat.
Heat.
Very good morning all of you.
Is my voice clear?
Heat. Heat.
Okay.
Heat.
Heat.
Heat. Heat.
Okay.
Good morning all of you.
So in uh subtraction using all from n last from 10 1 minute.
So 70 Okay.
subtraction.
Subtraction using all from 9.
Last all from nine.
Last last from 10 remaining examples very good voice is very clear. So subtraction using all from 9 lost from 10.
So already for example 9,000 minus 7,89.
Okay.
Minus subtraction using all from 9th.
I have explained what is subtra what is menu and this is called menu end and uh this one is subtra okay writing so I'm using one this kind of pad so practice so do you know this everyone pentabon Okay. Whatever drawings.
Okay. So, menu and subtra hand and menu hand.
We can type this to 1 minute.
Heat. Heat.
Okay.
resistor and this is menu n min and m i n u n min okay let's move to the actual topic so all from n lost from 10 you can apply to this to remove borrowing okay borrowing concept remove so initial stage slotting there is So much noise again. Start it up.
Okay, let me try one more time.
is my is my voice okay now.
I think it is okay.
Yes.
source.
Yes. Ramach Krishna 1,000 minus 0.764.
Okay, I will do that. Is my voice clear now?
I think it is very clear now.
Okay. Anyway, so we are using this all from 9 last from 10 concept for only uh zeros and digits. Why zero? zeros in the menu and um zeros in the menu and digits in the subra hand. See, check here.
So, we have not able to see this.
Okay.
Here we have to last launchy all from nine lost from 10 and write line 9 and 10 like this.
Okay, this is base. So 10 - 9 Okay.
10 - 9 1 9 - 8 1 again. 9 - 7 2 steps.
All from 9 lost from 10. Low. So first subtract all from 9 lost from 10. Step one subtract.
Oh my god.
Subtract from 9 last from 10. Okay. And second step is take predecessor of remaining.
Custom.
take predecessor of remaining. Okay.
So these two steps already all from lost from 10 step one.
So remaining terming remaining term remaining term n predecessor previous number eight.
Okay.
Sorry voice is very clear. Okay. Thank god. Thank you.
So the base Okay.
Base subtracting all from last from 10 already examples.
I gave 40 sums. Among 40 sums you can do easily up to 20.
21 decimals.
Okay.
Okay. Next, minus 0.764 the doubt and okay.
So 1,000 - 764 point decimal point you can put decimal point and zeros value will not change that means 3 = 3 0. So okay.
So 3 = 3.0 or 3.00 for our convenience.
Additional point number.
Okay.
Last from 10. Last 10 remaining. I will change color. Wait.
Last number you have to subtract from 10. Remaining number from 9. So all from 9 lost from 10 area. Remember that. Okay. 10 - 6 10 - 4 6 9 - 6 3 and here 9 - 7 2. Okay.
So remaining number subtraction remaining numbering number step one. Step two remaining number pre predecessor 999.
Step one step one.
Step one is taking all from 9.
Subtracting all from 9 last from 10.
Subtracting all from 9. Last from 10 is step one. Okay. Next step two. Take predecessor of remaining. Remaining remaining predecessor remaining digits decimals.
Easy.
Okay.
I need to get habituated. I need to get hand.
Okay. So, decimal points.
value.
Okay.
Okay. Next doubt.
Starting add answer.
We call this as menu and menu and subtraand. Top number is menu and bottom number is subraand in subtraction. So add answer and subtraand you will get menu and here.
Okay.
Okay. Next.
Okay.
So, okay.
Numbers.
Raction numbers borrowing concept.
Still borrowing concept all from Nostus 2 from last digit e from last All from 9 last from 10 9 - 10 - 3 7 9 - 7 2 and 9 - 6 3. So 25 - 5 20 actually first step all from 9 last from 10 apply 25 - 5 from lost from 10 remaining number 20 already from last from 10 25 - 20 25 - 5 20 answer.
Okay.
Doubt you can ask doubt.
So numbers and low first example first model only higher value higher digit only zero remaining.
Another example in next page.
So from last only when hand as zeros and hand as digits only.
Okay.
- 5.
So 2 0 - 0 all from last from 10 60 and subtract 4 9 - 2 7 5 - 3 2 remember 5 - 3 5 - 3 actually two but one from two subtraction.
After subtraction, we got two but we have to take predecessor of two to use number of two one. If you have doubt you can check your answer using this addition method or else in digital sum or digital root.
So dist root of digital root of 5,000 50,0007 how much seven needs two you can take the two from five so five digital root digital root you can cancel six and three directly remaining 7.
So subtraction 7 3 - 7 - 4 - digital sum 9 - 4 = 5 digital sum question digital sum or digital root. Okay. So five answer seven and two you get cancel two 7 and two one minute One minute.
Okay.
So question digital rootus question digital root is five. So answer digital root 7 and two remaining five.
So this is answer digital truth. So question digital root answer.
So last step from last and take predecess of remaining number. Okay.
Addition method add answer and subtra you will get min n. If you get min n that means your answer is correct. Okay.
Next concept already I have told you about lower lower digits and higher digits. We have 10 digits 0 1 2 3 4 5 6 7 8 9. These are digits remember. Okay. These are called lower digits.
These are higher digits.
Okay.
These are lower digits.
Okay, these are higher digits.
Okay, Sraanti, you're making many comments not required. Okay, these are higher digits. 0 to four are lower digits. 5 to 9 are higher digits. So what is viculation? Viculation is a process converting higher digits into lower digits. So vication viculation is a process converting higher digits into lower digits to simplify our calculations. General lower digits easy and accuracy accurate and speeds.
Okay. And one more thing, numbers. For example, five 6 bar 2 3 4 and bar. So negative numbers digits negative number positive numbers math. Okay.
So vulation converting higher digits into lower digits to simplify our calculations. Simple vulation is a process to convert higher digits into lower digits to simplify our calculations. Okay.
Sir, clear my doubt.
Yes. Dark sword.
Clear my doubt. Doubt.
Sorry, I didn't check.
Uh yes yes did not understand the sum with sum Sir can you explain in English only because I don't know Telu. Okay.
Anitriati what is your doubt? Tell me which part you didn't understand.
So many are few students are sending doubts.
Dark sword anon kindly tell your uh doubt again.
So promela sent one doubt here 55 minus 14.3827 e prime doubt subtraction part.
Okay, concentrate here you will get clarity don't worry.
So 55 for our convenience and so for our convenience subtraction 14.38 27 Subtraction even in subtraction or in addition you you should keep this decimal point like this vertically decimal point.
Now do subtraction again all from last from 10 concept when we have zeros in the menu and and digits in the subpra hand. E particle all from 9 lost from 10 apply just remember that. So do it.
So subtract 10 - 7 3 9 - 2 7 7 9 - 8 1 9 - 3 6 5 - 4 1 5 5 - 1 6 Actually 50 sorry 4 + 1 minute is confusing H.
So 41 5 - 4 1 5 - 5 - 4 1 5 - 1 4 all from 9 lost from 10 apply I told you take predictor of remaining part so remaining part 41 41 predecessor 40 Using digital root you can check your answer using digital root or addition method. Add answer and sub subtraand. If you add these both two you will get menu end answer is raali. You have to get answer as okay. If you want to check this out, you can check um is it token under any third party right now?
Someone sending balaju wrong answer. Send properly anati. Did you get this now?
So using all from 9 loss from 10. You should not forget second step people are usually two steps. First step is subtract Subtract all from n lost from 10 in the first step. Second step you should not for forgot.
If you use first step you must use second step also.
Take predecessor of remaining part.
Okay.
Explain.
Okay.
from N lost from 10.
You can ask doubt anati is it clear now sir what you explaining that in positive negative numbers in vic something like that you saying okay positive numbers negative numbers okay okay I got it okay that is viculation part I will explain that in viculation okay you will get clear idea when I start viculation uh topic viculation is a concept where you can convert higher digits into lower digits. Okay. If you convert higher digit into lower digits that bar numbers will arise. Bar numbers means ne2 numbers. Okay. Number law you find same number in one number you can find positive digits and negative digits in vic maths only in vic maths. Okay.
You should not forget these steps.
Remember if you use all from 9 loss from 10 you should not forget second part take predition of remaining number.
Remaining numbers means after see remaining numbers means after subtracting see here you used all from 9 lost from 10 but you didn't use here so you got 55 - 14 41 but you should not take 41 you have to take predecessor that is the reason you took 40 so 40.6173 6173 is the answer. Don't forget if you practice well you will get clarity. And one more thing Ana 3 where it is okay see in generally this is 25,678.
So we call the we call it as we we didn't put any negative symbol before this number. So we call it as a positive number right.
So all digits all digits in this numbers is positive. But in vic maths remember but in vic maths for example if you write 7 3 6 7 4. If you find like this, I put bars on these digits.
1 minute So I wrote like this. So if you find any bars like this I put bar on three and bar on two. That means those both are ne numbers ne digits. Okay remainder are positive. This is applicable to only vic maths numbers only. Remember that. Okay.
I will explain one by one. I will explain uh if I explain ventriculation part you will get clarity. Okay.
Ventulation topic. I will explain that.
I will start from tomorrow. Okay. Let me clear all others doubts.
Yes. Ponam you have sent one doubt.
Higher digits means 5 to 9.
Generally we we take 6 7 8 9. We convert these numbers. If you convert five into uh if you want to convert five it will come 5 - 5 or 5 9 - 5. Okay, I will explain in ventilation. Okay, you will uh you'll get confused if you say if I say it. You have to uh listen from starting onwards.
Okay, that topic is a little bit clumsy.
But if you listen from starting onwards, you will feel uh easy.
So what is five?
I'm searching for your dots. Yes. Yes.
Yes.
Yeah. I got one doubt from Promeila again.
This is actually this is 1 - 0.364.
This is 1 - 0.364.
You can put Okay, both are equal. We we can put decimal number and zeros for our convenience like this. So if you put like this, you can write like this for your convenience. Remember decimal number start from decimal point.
Either you have to place one zero or number decimal point 76 at least 0.76 or else any digit 1 76.
So you you should not write like this 76 at least you have to put one zero or digit. So here 1 0 0 that means 1 minus 0.364 364 So here we have zeros and decimals and decimals all from lost from 10 - 4 6 9 - 6 3 9 - 3 6 So remaining part see here remaining part is one one predecessor is again zero I have explained about number line previous number line concept number line zero 1 2 3 four and so on and this way -1 - 2 - 3 -4 and so on. So the number line I can put something 1 minute So this is number line zero.
1 minute in number line.
Middle part is middle number is zero.
Right hand side you will have positive numbers and left hand side negative two numbers.
Okay. So like that.
So 0.
So one predecessor of one is zero according to number line zero predecessor minus one minus one predecessor minus 2 okay fine 0.364 that doubt is clear.
So someone gave me 1,000.001us 001 - 9 4 9 okay here there is a concept like viculation after viculation only you can do that because I will explain little bit now Someone asked a doubt minus this. Okay.
See 1,000 minus 9,999 you will get NATO answer.
Okay.
9,999 subtract small number 1,00.001 it this is a small number okay this is a big number you will get negative answer okay Okay, fine. This is the one minute.
See when you find like this try to do see 10 minus - 12 you will get - 2 that means shortcut 12 - 10 JC minus number add JC man uh 10 12 - 10 you will get 2.
So that is the reason if you subtract a big number from small number you will get minus 2.
So 10 12 - 10 2 10 - 12 - 2. Same way you can reverse it.
Better way to do this is reverse this. That means 9999.999 minus here write this number because you gave me a uh subtraction likes subtracting a big number from small number. This is the best method.
Use your common sense and do it. 10 9 - 1 8 9 - 0 0 9 - 0 0 again 9 9 see 9 - 0 0 9 - 1 finally 8 so actually this is the answer but if you subtract a small number from a big number you will get negative answer right so your answer would be if you subtract 99 sorry 9,999.999 99 from,000.
0.1 you will get this answer - 89 8,999 08.
Is it clear? Who is that? Chhattan something Chhattan.
So always use your common sense. See observe the question first understand the problems first. Okay. You gave me 10,0001 minus 9,999.999.
Of course you created it. No problem.
See subtract subtracting a big number from small number gives you negative number. So the best method is subtract that small number from big number you will get positive answer put minus to that you can make easily you can find easily yeah good okay that's it for today from tomorrow onwards I will start ventriculation part that is very useful to make big uh tables for example 736 table 98 table 879 table like that if you want to find make any big tables like this if to find any uh divisions for example 7 lakhs to 2 uh 7 7 lakhs 22,236 divided by 569.
So that is very difficult to um you know to make that kind of big table.
So using vinylation you can find that you can make that table very easily. Okay, I will explain from tomorrow remember I will send again few problems.
worksheet you need to get clarity on this ventilation part. See ventriculation is useful for making big digits into small digits. Converting big digits into higher digits into smaller digits to make our calculations easy.
Okay, I will start that from tomorrow.
Okay. uh till now see there is a ventilation includes ventilation and deventation. You might have some doubts regarding for example 2 29 minus 10 no I I will add them 2096 minus 99 what we have to do see here we cannot It was So remember the final uh last problem for today. See here only we have one zero remaining are digits. We have digits in menu and and subpra hand but we have only one zero. How to apply all from nine lost from 10? I forgot to tell this concept. How to apply? If you have two or three digits you will apply all from 9 but last one from 10. But we have only one digit. So subtract from 10 only. We don't have more. We have only one zero and one digit. Subtract all from 9. Last from 10. Subtract 10 from 10 only. 10 - 5 is five. and remaining subtraction do it as usually 3 - 2 1 7 - 0 7 5 - 2 3 but you should not take this 371 you should not take 371 instead of 371 I told you if you use all from 9 lost from 10 or loss from 10 concept you have to take predecessor of remaining term remaining is 371 predecessor of 371 is 370 this is the actual Answer.
Is it clear online students?
That's it for today. Okay.
Okay. Fine. If you have doubts, you can send your doubts to my number 930 819 3000.
Okay. You can you can send your doubts through WhatsApp.
I will clear clear your doubts. Okay.
Okay. That's it for today. Bye-bye. We can meet tomorrow.
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