Can you do this type of multiplication instantly in your head?
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- Опубликовано: 21 окт 2024
- ome people may find these easy - others not - but it is essential if you want to easily mentally multiply bigger numbers that you first master this.
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Here is THE mental multiplication lesson playlist - progressing you through your mental multiplication.
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Mental maths is something I've ALWAYS been scared of, its still daunting but the overwhelmingly positive nature of these videos is doing wonders. Thank you so much.
Some of your tricks I knew… some, not so much… but I’m glad I came across your channel… I’m homeschooling my kid who is severely dyslexic, dysgraphic and also has dyscalculia… so, math is extremely difficult for her… after showing her your trick for adding fractions, (one I did not know! I always did them the long way,) she grasped that so bloody fast! Thank you! Math is no long the monster in the closet she wants to beat with a baseball bat! It’s quickly becoming the subject she looks forward to the most!!!
Your videos turn mathematics on its head.
Thanks again for sharing your knowledge with the world.
Wow another fantastic video from absolutely the best channel on RUclips. Thank you
How very cool and so easy. I am for sure going to share this with students when I return to substitute/casual/relief teaching when the next school year starts. Thank you.
Spectacular. This senior is inspired. Be practicing doing multi-fast.
Would have been handy to know this years ago. Also shows why it’s good to know multiplication tables.
20/21 not too shabby, lol why the hell isn't it taught in school this way, so much easier once you get your head around it, so glad i found this channel. thanks
Thank you so much for teaching this method. I struggled throughout my school years with math. I am now going back to school and find this method exciting. I wish I had learned this method long ago.
The practice page was most useful with answers on the following page. This gave me a beneficial way to practice. I learned the old way, many years ago and this is new and exciting for me. I wish you provided more practice pages on all methods. Thanks for this video.
Thanks for the feedback.
This is something I'll be including from now when practical to do so.
Thanks for watching.
Thank you. Much appreciated
I just love this, in lockdown it brings great joy!
I love your nature and kindness in yiur voice thankyou so much
Sounds silly but when the multiplier is 9 I raise it to 10 & then mentally subtract the multiplicand.
Yeah that works as well
You are playing with numbers which is brilliant mate .
subtraction is harder
Not silly
That’s how I’ve always done it 👍
Thank you Josh, this is another video that proves that if I had been exposed to people who are truly dedicated to maths , this method would have solved another hinderance in learning maths at school and out of school. I could of used this method to respond to some by saying to stop pushing the dyscalculia problem into the mind.
Love it! Thanks for the great mental math aerobics.
Love this channel!
worked it in my head just as your way as i always have done ...didnt understand mathematics at school
Thanks! Understandable as always 😊🙂
Brilliant as always!
sure can, thanks for sharing
OK young jedi, your math stacks up nicely 👍🏻please don't go too fast, I'll try to keep up.
How I wish you'd been my primary school maths teacher!!
I can see me going over lots of your videos with my grandson, and being successful. I never passed a maths exam at secondary school until I somehow scraped through my O Level. I must've spelled my name right!
I got 19/21 of the examples you gave, and going over them I saw I only got the 2 wrong because my times tables are rusty! So I'm off to look for a video of yours about how to keep them inside my head... Thanks for this, though! Ta ta!
I am surprised that I do mathematics with joy!
But why didn't I meet you in my childhood 😁
I wish they would teach our children to calculate this way!
So I tried it with 2 2 digit numbers and it actually WORKS. So basically if u have 89 x 24 u would do the 8 x 24 which is 192 and than you add a 0 at the end of the 192 so it turns to 1920 and then do the 9 x 24 which is 216 and then plus the 1920 with the 216 and it equals 2136 and I was genuinely surprised lol. Your welcome ig.
(edit) You could maybe pin this so other people can see this ;) Jk if u don't want to don't but if u want people to see this than do it if u want! Also thanks for the tips and tricks.
Wow!!! I love this! I still have yo write each number down because I cant hold them in my head ( i never have been able to) I think that is dyscalcula
this really helped me alot your super smart i bet you can get to 10m
Very good this method ought to have been taught at school
Thanks for the tip 👍
I love this stratgey I would also like to use it at school.
That’s so cool. Thank You!
It's the same as the traditional way, except backwards. The lattice method is best for big numbers.
Thanks. That's easier for me.
Thanks, I needed math practice seen as I'm 12 and on summer break, so I really didn't have to do much math and I'm out of practice
I have always struggled with my times tables I could never ever get them off the top of my head so I would have to count on my fingers and toes in order to do this math has never been my strong suit but it's a nice way to know thanks mate
Great, although I've learned to use the 1, 5 and 10 steps, which as well helps for % calc. Double/half were taught first, then x10 = add 0, and x 5 as half of x10. Later we added x4 = x5 - x1, x6 = x5 + x1, and x9 = x10 - x1. For x3, x7 and x8 you add/subtract the double, which means for the samples: 48 x 4 = 480/2 - 48 =192, 67 x 5 = 670/2 = 335, 69 x 6 = 690/2 + 69 = 414, 78 x 9 = 780 - 78 = 702, and for 83 x 7 = 830/2 + 166 = 581. Quite easy as well ;-)
OMG...wish I knew this trick when my kids were learning this in school years ago
wow this really gonna help me improve
If a 2-digit numbers that end in 8 or 9 you can just use the subtraction method but if it ends in 1,2,3,4,and it doesn't end in 8 or 9 you can just use the addition method.
This is actually a real good idea to calculate from left to right but it took yourself Josh outta all the channels that do mental math tricks to come up with a trick to do it
Thanks
Great lesson. Extra problems 31*8 is 248, not 648 but I'm guessing you put that there to see if we did them.
Maybe my poor writing..
81 x 8
@@tecmath Nope, I'm seeing 81*8. Your writing is clear. Thanks for the math break!
நன்றி நண்பரே
Very nice👏🏻👏🏻
8(70-3) or 8(60+7)
I wish you had been my math teacher!
So cool! 🤗
Brill cheers mate
I dont remember if it's what I was taught in school but that's the only way I use . I didnt know there was an alternative way to this to multiply numbers in your head????
I noticed that left to right method can be faster and easier but it's only slower than from right to left method in paper.
I've been doing multiplication in my head in this way for most of my adult life (I'm now 46). I, like a lot of people, learned "right to left" method, but as an adult always thought "well, that was just a dumb way to learn." lol
shut you your too scared to do it and it helps me alot
Awesome 😎
If it's 2 digits X 1 digit it's pretty easy to get it if it's X2, X4, X5 or X8. 2, 4 and 8 just keep doubling it and 5 you just halve and add a zero. But this method is awesome for the other digits!
It took me about 12 seconds... I got it right!
Whenever I have a number multiplied by 9 I just change it to multiply by 10 then just subtract the first number 79x9 would just be (79x10)-79
It's a very common trick
As I said... a lot of people may use this way already.
We are taught to multiply right to left in the Canadian Education System. I learn new ways to solve math problems all the time from this channel.
I'm confused, why have the sevens been crossed out? Doesn't make sense.
That aren't crossed out... it's just another way of drawing sevens (in fact the original way).
I often do them as a large part of the world still so them that way - just a habit I picked up.
they have a line through the sevens because otherwise they maybe confused with the number 1
Sir make Videos for Grade 9
May God help me. I'm homeschooling my 4 children. Thank you.
Yay me!
In my head? I think not lol. I would still need paper and one to figure it out.
Mai bachpan se use kar Raha huu iss trick koo😂😂
Calculator says, “no”
👍
This is what we actually do in multiplication...so this is not a trick.
@Mom Of Three u have seen this...but u haven't realised it.
For eg. 67*8 consists of (60+7)*8
So obviously 60*8 will be 480 and 8*8 is 64 hence 480+64..
Wow
If you watched this video,then tell me 58×9=?
The problm is when i dont hv pen n paper i lost
2:48 I am just gonna use a calculator...
You welcome.
Boom!
so silly.. just multiply in mind faster than this
Lol
"ज्ञान वो सबसे शक्तिशाली हथियार है जिससे आप पूरी दुनिया बदल सकते है।" ~नेल्सन मंडेला 🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻🌻
To whoever is reading this, you are so loved and you matter!Whatever you’re going through will get better, and although it may not feel like it at the moment you will be okay!❤️
I just wanted to tell you that Jesus loves you & I hope you have a good day!
not if u are gay!
@@Brukrex what
Good to know
@@Brukrex God loves everyone!❤️
@@jesuslovesyou8404 Yeah but doesn't like sinn. He doest like us with our sin
You should answer my questions!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Oops sorry for that
where was the 49x 40 question? Learn to edit your videos
Lol this is how it is learned in school.
Fist 🇧🇷
Is this a joke ? It’s much quicker to do it the traditional way.
Simple problem I agree, more difficult problems I prefer his way. Two small steps than one big one.
It's actually the same thing, just in a different format. And in this format it's quicker when you do it mentally.
=P
@@x.no.one.in.particular.x9153 I was thinking the same thing. "Don't we all already do it this way"?
This is easier to do mentally. But If I have paper then I agree.
Mentally this is easier and maybe even on paper