Mental Math Multiplication - Instantly multiply with numbers ending in 5

[@marci100480]

I would just like to say thank you. You make it look so easy. I hate math always have but you make it so interesting . I now can show my daughters if they're having problems with math there's more than one way to get an answer. It makes it enjoyable for them too. I love all your videos please keep it up.

[@loloferarri4342]

thanks, that was a great trick with the odd multiples. in order to be great in the complex mathematics you gotta first get back to the basics!

[@Unknown.Stranger]

exactly

[@robertconway6950]

"Genius is the ability to reduce the complicated to the simple " unquote.

[@joaquingutierrez3072]

Cool trick. Thank you!!

[@MultiComlan]

Damn, I'd like to thank you. I have job selection to attend and you are helping me getting better at mental math in a tremendous way ! keep it up and thank you so much 🙌

[@0riental1]

Thanks for your help keep doing the good work

[@tecmath]

Thanks

[@samarjitsutradhar4998]

Very nicely explained

[@richardbailey2001]

I got confused when you said this ; 90 plus 21 is going to be 117 ... ... I know , it just goes to show I do listen to what you say ,,,,, :-) :-) Thanks for all you do to help other's from a contented subscriber ...

[@jetpilot555]

Hahaha I caught that too

[@c.m9747]

Wow. Amazing.

[@pomi4984]

Amazing work

[@dorischoo]

Very good 👍 thanks

[@adamwhiteson6866]

Question, why not postpone the halving step until you've done the multiplication at which point you are sure to have an even number regardless of the *gender* of the multiplicand?

[@mathsuccesstutor]

What type of tablet and pen are you using to make your videos on youtube?

[@jobsucks]

Cool shortcut

[@adamwhiteson6866]

Always enjoy your stuff. Small error here @ 1:54 9x3 = 27 not 21. perhaps it's the accent :). You got the answer right so it was just a misspeak.

[@tonybarfridge4369]

He said 117

[@ViejoFeo56]

What I did subconsciously as a child explained as a system. Finally

[@mrriemannshahyp4963]

Very Good

[@tabazatechLab]

Thanks man this aceally helped me.

[@mickey4697]

ahmad tabaza. and I'm going to help you by telling you that your spelling is wrong.

[@tabazatechLab]

hhhhhhhhhhh ok thx

[@nameless5053]

@@tabazatechLab hi

[@nameless5053]

@@mickey4697 hi

[@mickey4697]

Irate Destroyer hi!

[@mannkhushwinder]

great work......

[@papagil6810]

Great job man, I will be a fool not to subscribe to ur videos. U are amazingly good

[@jackblack7225]

Where did the 21 come from in second example?

[@bishoppungatara8223]

How did we 21 from 13

[@myviews469]

with 27 x 35 what did u do with the 1 to make 26??

[@nameless5053]

He added it at the end

[@XXpretitorXX]

Thanks alot

[@MrGyges]

Good

[@zugzwang5310]

wowzers!

[@vkvajpai6183]

NICE

[@andreyusvald4198]

Nice

[@chakrimca7593]

good

[@hayoortner2235]

CB NICE

[@clbdyc]

I'm confused. On the first example where are you getting the plus 21?

[@tonybarfridge4369]

He is using the 3 in 30 to multiply with 17. 17x30 he said is 30 (3x10), plus 3x7 which is 21

[@ryadav8884]

nice

[@laundrydetergent8163]

Good way

[@mariabanaag050372]

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[@mariabanaag050372]

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[@jetpilot555]

66 x 15. I finished it this way before you start writing. 66+33=99 add 0

[@srikanthmba5770]

35*15

[@saigotheanimator1098]

I'm still gonna have to multiply anyway

[@Limbreak]

3*65=195 but your trick shows 260🤔

[@barryjackson405]

6x5x7x7=30x49=1470

[@saigotheanimator1098]

I don't understand

[@riyazdiamond7594]

Hello

[@tamilan2825]

I know this way

[@brainpanzer361]

try 73 x 73

[@nameless5053]

You can't because these are only for numbers that end with 5

[@green_Mascheen]

73 x 73 4 9 0 9 Plus 0 4 2 0 and we have 5329 why? (70 x 70) + (3 x 3) 4900 + 9 4909 (7 x 3) + (7 x 3) = 21 + 21 = 42 don't forget to put this numbers in the middle.

[@sonnyowen5194]

I'm the 69th comment

[@mickey4697]

What that makes no sense 15 x 3 = 17 totallyyyyyyyyyyyy.... Gotta go.

[@squishyblee]

TheGamingBats ???

[@mickey4697]

See I'm smart. 😋

[@DavinoPoker]

(15 x 2) = 30 --- 2/2 = 1 (+15 in the end) ( 30 x 1 ) + 15 = 45