I feel so lucky i found this legend when I'm still in school. You really did made me LOVE math. Thank you SO much! I feel like I'll owe you forever.

@ohm1945

3 жыл бұрын

That’s straight from the soul. Full on!

@elisya7813

2 жыл бұрын

@@ohm1945 i hate you

@ohm1945

2 жыл бұрын

@Elisya 78 Thanks,… I think. I suppose any sort of acknowledgment is good acknowledgment. Peace Elysa 78

@namrahyasir5187

2 жыл бұрын

What yr r u in?

Him: Solve this in 3 seconds. My brain: Don't even bother.

@rfdst456

2 жыл бұрын

Me too

@Connetic_

2 жыл бұрын

Fax

@alive_and_kicking

2 жыл бұрын

Good for you.

@sumsolver8165

2 жыл бұрын

😂😂

After 12 years you still upload. What a legend.

Where were you when I was in school? Silly question I know, I'm now goin' on 82 yo. lol

@march6319

3 жыл бұрын

He was a twinkle in a young boy's eye

@olisaanwuna3741

3 жыл бұрын

GOD bless you Sir!

@jsa326

3 жыл бұрын

I'm only 67

@postalinVT

3 жыл бұрын

70 here !!

@pepper5117

3 жыл бұрын

Wow..

My method: 21 x 14: multiply 2x14 = 28, therefore 20 x 14= 280. Then add one more 14 = 294. Easy!

@ShadowCooper77

3 жыл бұрын

I definitely use that for numbers that are close to a multiple of 10, such as with 21 and 14. But for 17 and 14 I'd rather use this method than 20x14 - 3x14.

@jasonchangdalekrule

2 жыл бұрын

@@InsatiableMonkey Breaking up a single number is the standard way to do it, but is harder to mental math for most people.

@Sevan59

2 жыл бұрын

the best way

@aurorapotter9730

2 жыл бұрын

Thanks !

@currently_in_a_CATRISIS

2 жыл бұрын

Thank you 😊

To me this seems fairly difficult to do still. I always just simplify the equations looking for the easiest way to do so. For 21 x 14 that means first calculating 20 x 14, which is 280, and then simply adding another 14 to get 294. For the 15 x 18 I just calculate 15 x 20, which is 300, and then deduct 2 x 15, which is 30, to get to 270. Now the last one seems to be the most tricky, but it really isn't. Just start with 10 x 16, which is 160, and then add 48 (3 x 16), which accumulates to 208.

@willthecat3861

2 жыл бұрын

28 tens plus 1 ten plus 4... so 294

@nobelnotesvijaykumar1343

2 жыл бұрын

15*18=180+90=270 how is this? You should use common sense and apply..

Math has always been like a fun puzzle to me (I’m 71) so this is really great. Don’t remember how I stumbled across your channel the other day but I’m sure glad I did.

@Jibbie49

3 жыл бұрын

When I took Freshman Algebra in 1963, I had had no Algebra or Geometry in Grade School, as in 8th Grade we were still doing Basic Math. Half the HS class took Basic Math and we were only required one yr of Math to graduate, No summer school prep class, no after school tutoring, no bookstores full of math help books especially on how to solve word problems (Kumon Math, Painless Math). My parents hadn't gone to HS so they couldn't help. I made a "D" for the year & was told I couldn't repeat the class, even by just using my Study Hall period the next yr and not changing the grade. No, No, I was now in the Secretary/ Home Ec tract. Thankfully, there is a world of help today to learn math.

Absolutely superb. Why was I not shown this in school. You’re awesome!

I'm enjoying these. We're trying to get a 3rd grade student interested in math using your methods.

@guy-

Жыл бұрын

Is he interested?

Your channel is a very powerful tool. Thank you for teaching this to all of us. Math that’s being taught in elementary schools today is so confusing to the students

You know what's magic? Your VOICE. So easy and pleasant to listen to. You look really great on the radio, as they would say back in the day.

@tecmath

3 жыл бұрын

Thanks. I have a great head for radio!

@itsgettingold

3 жыл бұрын

@Strat Abuser It means he looks good on the radio. The amplifier might be up to high on the Strat.

@itsgettingold

3 жыл бұрын

@Strat Abuser You are so lucky to have a Strat - wish I did!

@tecmath

3 жыл бұрын

I always thought it meant it was saying the person was a bit ugly... that is - they have a great head for radio - in that you can't see them!

@itsgettingold

3 жыл бұрын

@@tecmath That's exactly what it means-in addition to having a great radio voice. And yes, I, too, look fabulous on the radio!

Thank you mate. Keep the content coming please this is gold. I love the way you go over things twice for charity. You are a star!

for one's with a small digit, like 21 x 14, I just do 20X14 then add another 14. If it was 19X14 then it's 20x14 - 14. You method is nice for the "middle sized" digits.

@tecmath

3 жыл бұрын

That is a good way of doing it. Thanks!

@BigAlCapwn

3 жыл бұрын

Yeah I did 15x18 as 15x20-30 to get the 270

@brucemiller1696

3 жыл бұрын

That is the way my brain works too. Seems easier.

@dari9345

3 жыл бұрын

@@BigAlCapwn That’s a good method. Other way of showing this is transforming the 15 into a 10 + 5, leaving you with: 18(10 + 5) Multiply every member of the parenthesis, 5 is basically 10/2, so you can calculate 10 first by ading a 0 to 18, and getting half of that for 5 180 + 180/2 = 180 + 90 = 270

@dave2amsterdam

3 жыл бұрын

21x14=2.1x140. So 2x140=280 then as +0.1 = 1/10th add 14 to 280 which is 294.

Thank you for the tips and tricks! But for my own issues, I'll still do the long form. Maybe not in my head, but definitely on paper if available, or on a calculator. Please keep this good stuff coming.

Thank you for teaching me this it’s making my timestables so much easier 😊

These are excellent shortcuts but for many of us oldies remembering these new tricks is difficult. However we had to do mental arithmetic at school so can often just feel, or see in one's mind's eye, the answer develop.

this helps so much for doing long multiplication in my head. thank youuu!

thank you so much for these! I just started college and wanted to do some deep research and tutoring on math, this channel is AMAZING! God bless you and keep up the good work!!

I didn’t understand what you meant by how far the third problem was from ten until you showed it in process. Now that you explained it, I need three more problems to know if I learned it. Thank you. I’m dyscalculic and struggle with keeping any numbers in my head, so tricks like this do help because it shows me what is going on with the numbers-that, I can do: comprehend. It’s the calculating that fumbles.

Wow, I am just blown away by the videos I have watched so far. I intend to watch all your videos, EXCELLENT, you are the best teacher ever. Thank you so much for sharing your videos!

Absolutely love this channel 💙

Thanks for sharing all of these cool tricks that can actually be useful. Many people really appreciate this

This simplification and other tecniques should be taught along with the basic methods in every day shooling.

Love your amazing Math tricks. Thanks for sharing so they can pass on for generation to generation.

Just want to say I was feeling pretty upset about bieng a slow poke at multiplying when I came across this :)) you just motivated me and I thank you for that

I get so excited for these videos! always amazed

Fantastic tricks as usual, you’re so shrewd my friend, also, your videos are informative with clarity and fascinating, that I love the video so much, excellent work!

@tecmath

3 жыл бұрын

Thanks mate.

Your tricks are so easy and fast! These techniques are out of the world.

honestly life saver because, the way I was taught in high school was so complex now knowing this I had to look at it more simple.

So now simple math is becoming instantaneous. Like a gut reaction to seeing expressions. Love this content.

Thank you! These are REALLY helpful tricks!

Love your voice and thanks so much for the math help. Your the best man

Thank you for your wonderful work!

This is a new way to learn multiplication. I need to pass this video to my grandchildren so they can improve their mathmatics. My son would most likely subscribe to this channel. Awesome!!! Thanks

I knew amazing content coming up.....that’s why I subscribed to your channel. Good work

@tecmath

3 жыл бұрын

Thanks.

@sheenamzafar8124

3 жыл бұрын

@@tecmath 👍

Thank you for these great tips!!!

My mom and dad never teach math practices at home. I was struggling with math. But as grow older by self learning there rules and law to follow in math. Amazing... this made it easy learning special the squares and percent and fraction . They are helpful at work

Thanks for sharing. Always looking to help my students with real life ways to approach math.

tectmath has break the career of our math teachers, btw thank you so much for this video!

You sir are a pleasure to listen to thank you

Brooo this is so good, tysm!

What a great tip!! Thank you very much.

This is great i have just rumbled upon this channel, so much fun.

Thank you for sharing this!

Great tip, thanks! 👍 I’ll have to try it with some 3-digit numbers.

Ghana you i needed to relearn multiplikation (how to do it in my mind) after a stroke so this was a god send..

Great perspective!

i love this man keep it up

Yo I came BAKC to tell u thank u so much for helping me since 4th to 11th grade I don’t know what I would’ve done without your channel

What an amazing channel love these math tricks

Great trick! Thank you 🙏🏻

This is amazing I forgot I subbed to this channel

@tecmath

3 жыл бұрын

Thanks mate. Hope you liked the trick.

@basesixty6739

3 жыл бұрын

@@tecmath it was great

@Onmysheet

3 жыл бұрын

It's annoying videos you're subscribed to don't get recommended to you.

@basesixty6739

3 жыл бұрын

@@Onmysheet ikr

@4glassmilk635

3 жыл бұрын

@@Onmysheet just turn on notifications

Your channel is a national treasure.

love this one, neat trick that is very useful, my bell is on tec

Your a brilliant teacher thank you for this amazing lesson

Love your videos.

So glad I found your channel, I'm actually smart now!

This is awesome, I deal with big numbers at work all the time!

love you bro that helped so much

You are so helpful I can't appreciate it enough

Thanks for the amazing video Loved you every videos ❤️

This was fun. I learned a new multiplication short cut! Thanks🤗💚

@tecmath

3 жыл бұрын

Thanks. More to come.

@missygirl7059

3 жыл бұрын

Thanks. More to come.

@arnavtandon2814

3 жыл бұрын

Thanks. More to come.

@mydickisunbelievablysmallb8132

2 жыл бұрын

Thanks. More to come.

You are a genius. Like Evan below, I would have loved to be taught the method you use. You make me want to go back to school and start again all these years later. :)

Great tricks keep it up! This will help me in high school

Excellent! 👏🏻👏🏻👏🏻

Absolutely brilliant 🤩

Helped me a lot.. Thank you ❤️😊

Really helpful vids. God bless you

Great and very simple way to explain multiplication concept! Nice job for sure!

Absolutely fantastic videos! Love learning something new or a new way of doing things through them. What would you do for something like 52*26 though? Many thanks.

@robrobb

3 жыл бұрын

Yes that's my question as well...was trying to do 47x26 and got a completely different answer, then i tried doing your 52x26 and again got a different answer....HELP tecmath!!!

@aguy463

3 жыл бұрын

Same concept just a little different, First 52 + 6 = 58 58 x 20 = 1160 Difference between 52 and 20 is 32 32 x 6 = 192 1160 + 192 = 1352

I love these tips!

Awesome man, You're awesome

This video was a trip down memory lane. 🤣 Thanks for video!

So nice seeing seniors learning math all over again 😊

Very helpful!

Thank you so much for this mathematical magic, sir.😊

Thanks It helped me alot From 3 weeks I am just searching about it Thanks It was the easiest one

Thank you!

Very cool. Thanks

Blooming marvellous; thanks for sharing 😍

Thanks mate!

with the 21x14 and similar it seems really tricky to remember to count to that 11 thingy I'd rather use the separation method where i multiply the numbers individually as they are, for example 21x14 = 20x10 + 20x4 + 1x10 + 1x4 = 200+80+10+4 you multiply the 20 with the 10, then the 20 with the 4, then proceed to multiply the 1 with 10 and lastly the 1 with 4 basically 21x14 = (20+1)x(10+4)

@pokretny

3 жыл бұрын

In this particular example doing it like that: 10x14 + 10x14 + 1x14 is actually easier.

@dari9345

3 жыл бұрын

@@pokretny I would dare to say 2x14x10 + 1x14 is even easier, by separating 20 in 2x10, I can multiply 2*14 and then add the zero. It is basically the same thing you did, but I think easier.

@alexeyzolotarev741

3 жыл бұрын

you can do it as (20+1)x14 = 280 + 14 = 294

@PrincessMcDorkie

3 жыл бұрын

I love all of these options so much more than the vid and seem even easier to understand than the way I had to do it, thank you all and please come with more easy options if there is! These comments are basically the easy math hacks I was looking for when clicking the video!

Nice! Thanks

We needed teacher like you in our school.... If, KZread invented during our school time😭😭 You are awesome sir.. 🙏🙏🙏🙏 Respect from India

You’re amazing!!!!

Thanks for sharing.

I love this trick it's already amazing

I love this!

This is really cool!

So clever thank you

this actually helped me thankyou

Great Technique.

Cheers mate first time I’ve done a hard times Good way and really efficient From UK

Wonderful Trick! I appreciate it - will teach my students. I got 3/3 with a little help.

Thank you, very handy.😁

Damn! I gotta sub to this channel. This is very helpful knowledge.

Ingenious, where were you when I went to school

Clever ... very clever. And now I am too!

This is really interesting. Do you have a rigorous proof for this method?

This is so excellent.