Wait. A. Damn. Minute. You just divide without doing the all extra long steps?! I'm an adult student and ➗ decimals is part of my class, but I was tough to move the decimal point depending on the # of places to the right. I feel like a bucket of really cold water was pour on my head. Thank you! I don't get it if there more simpler ways to do math, why make math more complicated that what it needs to be? I have a love/hate relationship with math.
I prefer to multiple by 10 until I’m dividing by a whole number. x10 is automatic; you just move the decimal on both sides. 5.52/0.3=(5.52x10/3)=55.2/3=18.4
@Dan G lol. That’s how I do approximate division in my head too. On a test, I would write out: 99600.0/12. Then go to 8x12=96 (using multiples), then carry the 3, then find 36/12=3, for 8300.0. As soon as it’s something like 99/12, I use multiples. I just do the tens digits first because I don’t want to mess with zeros once I have a number. There’s an Office Space reference in here: “I must have put a decimal point in the wrong place or something. I always do that that. I always mess up some mundane detail.”
That's exactly what he was doing in the video. Without properly explaining it, the subtraction of the decimal movements (the multiplication by 10) he did was actually calculating the result of simplifying all of the x10's (and /10's in the last case) that were performed on the dividend and divisor. Using the same example you took from the video, 5.52 / 0.3 = (552 / 3) * (100 / 10), hence the 2 - 1 = 1.
I love your videos - they are so clear & easy to follow. I just want to show that the old school way of doing these sums isn't in fact difficult and when you stick to applying your Tens or Hundreds units to both sides of the equation, things slot into place without much thought eg 9.312 ÷ 400 Divide by 100 to both numbers to get 0.09312 ÷ 4 now simply divide through = 0.02328 and I didn't have to think where to put the decimal point because it's already in the correct place. eg 5.52 ÷ 0.3 is same as 55.2 ÷ 3 ie x 10 to both sides so as to simplify. Now divide through leaving decimal point in place 55.2 ÷ 3 = 18.4 eg 996 ÷ 0.12 is same as 99600 ÷ 12 ie multiply by 100 to both sides. In so doing, my decimal point is in correct position. 99600 ÷ 12 = 8300 In this way, so long as I equalise my changes to both figures, I'm keeping my decimal place correctly. Once I've done that, I don't need to remember any other rules. Ps I'm multiplying or dividing numbers by tens or hundreds to simplify the sum. A big number isn't scary for simple maths , it just takes longer to divide through.
I remember that someone said the you should put a line over the number that carries on going so let’s say there was a never ending 3 just put a small line over it.Simple right.
@@shawnjiang7392 so there was a substitute and she didnt know how to do anything,so one of the smart knew about a little bit so the student taught instead of the teacher.
FIRST! I love your videos, pls make more
Wait. A. Damn. Minute. You just divide without doing the all extra long steps?! I'm an adult student and ➗ decimals is part of my class, but I was tough to move the decimal point depending on the # of places to the right. I feel like a bucket of really cold water was pour on my head. Thank you! I don't get it if there more simpler ways to do math, why make math more complicated that what it needs to be? I have a love/hate relationship with math.
I love this guy
Agreed
The kids and adults today need your videos! You are a true hero 🦸♂️
You're a life saver, bless you.
You are a amazing sir. Thank you. I wish I was more eloquent in my praise you deserve.
I find this really helpful😊
Thank you.. this is absolutely gold..
Thanks this video really helps me to divide decimals.
Loved this, thanks so much
thanks this helped my struggling cousin a lot
I prefer to multiple by 10 until I’m dividing by a whole number. x10 is automatic; you just move the decimal on both sides.
5.52/0.3=(5.52x10/3)=55.2/3=18.4
@Dan G lol. That’s how I do approximate division in my head too. On a test, I would write out: 99600.0/12. Then go to 8x12=96 (using multiples), then carry the 3, then find 36/12=3, for 8300.0. As soon as it’s something like 99/12, I use multiples.
I just do the tens digits first because I don’t want to mess with zeros once I have a number. There’s an Office Space reference in here: “I must have put a decimal point in the wrong place or something. I always do that that. I always mess up some mundane detail.”
P
That's exactly what he was doing in the video. Without properly explaining it, the subtraction of the decimal movements (the multiplication by 10) he did was actually calculating the result of simplifying all of the x10's (and /10's in the last case) that were performed on the dividend and divisor.
Using the same example you took from the video, 5.52 / 0.3 = (552 / 3) * (100 / 10), hence the 2 - 1 = 1.
Great job
Great vid
Thank u this made math easier!
Thank you so much🙏
Thank you.
Thanks I really don’t know how to multiply or divide decimals
Great, I’m learning so much 😊
Man i just love you m your the best keep it up.
You are seriously the best math teacher of all-time!
I love your videos - they are so clear & easy to follow.
I just want to show that the old school way of doing these sums isn't in fact difficult and when you stick to applying your Tens or Hundreds units to both sides of the equation, things slot into place without much thought
eg
9.312 ÷ 400
Divide by 100 to both numbers to get
0.09312 ÷ 4
now simply divide through
= 0.02328
and I didn't have to think where to put the decimal point because it's already in the correct place.
eg
5.52 ÷ 0.3
is same as
55.2 ÷ 3 ie x 10 to both sides so as to simplify.
Now divide through leaving decimal point in place
55.2 ÷ 3 = 18.4
eg
996 ÷ 0.12
is same as
99600 ÷ 12
ie multiply by 100 to both sides.
In so doing, my decimal point is in correct position.
99600 ÷ 12 = 8300
In this way, so long as I equalise my changes to both figures, I'm keeping my decimal place correctly.
Once I've done that, I don't need to remember any other rules.
Ps
I'm multiplying or dividing numbers by tens or hundreds to simplify the sum.
A big number isn't scary for simple maths , it just takes longer to divide through.
For the 3rd question how do you know when you're supposed to stop adding the run on number?? Can you please explain
I remember that someone said the you should put a line over the number that carries on going so let’s say there was a never ending 3 just put a small line over it.Simple right.
Well what if there are no Zeros. In exampel D, If its devided by "436" What do you do in your way of thinking?
Get your kids into this maths wizard it's so easy when you take it on board let your kids watch it see what they say
👍
3 minus a minus 2. We change the sign of the smaller integer and add them together.
Wow, I wish I was taught this in school! Videos like yours inspire me to share my own maths content!
24:56
This is way better than school teaching 👍
How bad was your school?
@@shawnjiang7392 so there was a substitute and she didnt know how to do anything,so one of the smart knew about a little bit so the student taught instead of the teacher.
I think it's probably just turning them into fraction simplify and then, keep change flip.
9:15
Time to test this out on a website called doctor frost
5:25 thray
Hello sir important chat
You reposted this video! Originally you posted 12÷36=4, I corrected & posted 12÷36=3, I don't see my original comment, and you corrected your mistake!
Yep.
Thanks for pointing it out.
im in year ten set two and i have no clue why i dont know this, biggest weakness un maths.
5,52/0,3=
552/3=18,4
996/0,12
9960/12=
3320/4===8,3
im allowed to use a calculator in alg 2 but I'm watching this for fun
Repost?
Yep.
I had to fix an error - where I wisely stayed 36 divided by 12 was 4.🙄
Indian do 7.539 ÷ 3.65, 565.645 × 6455.65 much easly
I’m here cos I have a maths test in an hour, pray for me
How did you go?
@@tecmath we still haven't receive the score yet
funny... I posted one comment about one mistake, but I don't see my comment anymore...
and it looks like you that time to time!!!
Why?
Reposted.
Fixed the mistake.
Thanks for letting me know!
@@tecmath thanks!
Do a face reveal please
Just break out your phone for peat sake.
Too many steps
Indian do 7.539 ÷ 3.65, 565.645 × 6455.65 much easly