Alright, truth is i haven't actually planned the thread but i just want to kickstart it anyway.
Will just learn as we go along.
I don't claim to be a guru, I'm just here to share knowledge i gained over the years, and also some personal experiences.
I really hope people can benefit from this

While i was in my first year in the university, i was becoming obsessed with the human mind, the possibilities, the endless limits. Read stories of people with Superhuman memory, amazing mental maths skills, ability to learn languages in record time, chess grandmasters ability to see positions and variations 15 moves ahead, play wothout looking at the board and simultaneously too.. All these things amazed me and i sought for ways to really improve my brainpower

I'd like to think that I've always been a sharp kid, inquisitive, creative
I remember back then when dad made me recite multiplications tables and recite ohms law and some other stuff when i was in primary school, i think this really contributed to my brain development. In hindsight i now believe that children learn better and faster than adults and even have better retention sef.. Might be wrong tho

Anyways moving on...

Cognotive ability
Basically the the mental process of knowing, including aspects such as awareness, perception, reasoning, and judgment
I love reading, virtually anything, from medicine to law, philosophy, psychology, science etc.
I think this helps in improving cognitive abilities, as reading various subjects gives your Brain more flexibility, since you aren't streamlining yourself.
Read new things, things you arent familiar with, i think there is scientific research to back this up but anyway thats a topic for another day.

Think creatively.. No matter how dumb it may seem, i promise you, it'll greatly improve your intelligence. The fact that you have a problem before you and your brain processes like 5 different approaches in a few seconds is proof that you're a creative thinker.

Do things differently.
Soing things differently can actually create an avenue for improving the present ways of doing tjose things, but it also allows you brain to be flexible and not be limited to the same things over and over again.

Challenge yourself
I remember there waa a point in my life where i wanted to improve my memory, i would be walking from class to my room (University) i would mentally keep track of the light poles, trees, buses and cars as i walk back.
Mentally counting 5 buses, 7 cars, passed the 8th tree, 4th light pole and on some days i would try to mentally and spatially predict how many footsteps it wud take someone walking towards me to get to me while taking into account my own pace too.
Sometimes i would challenge myself to memorise plate numbers of al least 5 vehicles as well as colour and make, at an instant because they are in motion and try to recall when i get home.
The most audacious I've had was buying recharge card looking at the pin just once, throwing it away and loading it like 30mins or an hour later. Lolz
While in sec sch 3i memorised every single phone number i knew (bout 100 of them or so) cos i had no phone..still remember some of them today that even the original owners have thrown away and forgotten sef


I think you've gotten the point by now.. Challenge yourself.. Stretch your brain.. You wont know how far you can go

Network with people, talk to people, learn from people..

Will write about mental arithmetic soon..

Let's see what you've got to offer...

Mental Arithmetic
Basic addition, multiplication, subtraction and division can be used to solve seemingly complex calculations in record times, there are a lot of tricks here and there, so we'll jump into them right away

By now you shud be able to give answers to any multiplication from 1*1 to 12*12 in almost an instant.. As these are the ones we were used to from when we were growing up (back of exercise book stuffs and all)

1. Multiplying numbers by 5
A simpler way of doing this wud be to divide the number by 2 then add a zero behind.. Or multiply by 10
e.g 128*5 = 128/2 * 10
I.e 128/2 is easily 64 theb add a zero to it 640..way better than mentally doing long multiplication and stuff

Another variant for numbers that aren't easily divisible by 2...just look find the nearest number below it that even.. Divide by 2 then instead of adding 0..add a 5
Example
289 *5
We go with 288/2 which is easily 144 then add 5 to it... To give 1445..this shudnt take you more than 2-3 seconds.. Practice till you get better.. Remember! Challenge yourself!!

Mental maths 2
Multiplying numbers close to 10
Here we can use a clever trick
E.g 13 * 12..first pick the second digit of the second number ( 2) add to the first number to give (13 + 2 = 15) then multiply the last digits of both numbers (3 *2 =6) and append to the first 15 we got to give 156
By append i mean just write it after the 15
This whole process shudnt take more than 3 seconds

E.g 2
14* 16
This is a lil different
Obviously we know it wud be 20_
To get the last digit we multiply 6*4 to give 24...the 4 stays and the 2 carries over to the 20 to get 224
Hope it's easy enuf?

Now assuming the numbers where close to 20 and we use 20 as a base
The process is the same but with a slight modification
Example
23 * 21..we add 1 + 23 to get 24 as done previously.. But because we are using a base of 20..we multiply by 2 first before appending the last digit
That is 24 *2 to give 48, last digit wud be 3*1 to give 3 after appending we get 483
If it has a carryover we just treat as we did before


Shey its simple enuf

These skills would be invaluable in aptitude/job tests

Mental maths 3

Square of numbers close to 100
Example 104 squared
First we find the difference between 104 and 100 (our base) which is 4...
We then add that 4 to the number.. 104+4 to give 108
Then we need to append 2 digits since 100 square has 5 digits
So we know its 108_ _

To get the last two digits we just square the 4 which wud give 16 and append
Answer will be 10816

Easy right

For a case like 108 squared
Answer will be 116_ _
8 *8 =64
11664

112 squared
112 + 12 = 124
124_ _
12*12=144 then we carry over the 1
We get 12544


For numbers close to but less than 100
Battery lowww
later

Mental maths 4

Mental maths 5

Memory

Good stuff...work on your spellings though...

Sheikwonder:
Good stuff...work on your spellings though...

Hehe. you suppose knw say na freestyle stuffs and i dey rush plus my fone screen is bad so i'm using bluetooth mouse to type and all that, so i really dont have much luxury.

Good Job bro. Gr8 piece!!!

Oga lalasticla com and see

Hmmmm, nice one

yorex2011:
Mental maths 5

Nice thread. Keep it coming

Interesting

Nice one bro! More of it!

Thanks yall.. Will complete as soon as I'm free

Thumbs up

At op check this well pls 23 * 21..we add 1 + 13 to get 24 as done Shouldn't it be 1+23 to get 24?

geosilbert:
At op check this well pls
23 * 21..we add 1 + 13 to get 24 as done
Shouldn't it be 1+23 to get 24?

Guess itz typo error, 23 nt 13.

nice one yorex2011. but when are u coming to give mental maths 4 &5? we are still waiting

Abimbex007:

Guess itz typo error, 23 nt 13.

Yh its a typo.. My bad

parking by car(legs) here

following.. ah dai here

[color=#006600][/color] nice thread.

I can beat my chest that this topic may attain front page when christ is about coming but if it's all about davido and to top dike..... immediately Pam na front page he go hit

Yorex2011 goodmorning, hope u had a good night rest?

Urm I need ur help with something please. It's based on data reasoning questions.

Hi cutehector,pls which gmat did u study for diamond bank test?was goin tru d thread nd discover dt u were succesfl!pls,

samik900:
Hi cutehector,pls which gmat did u study for diamond bank test?was goin tru d thread nd discover dt u were succesfl!pls,

lmao. Are u sure I am the one you are tryna refer to? I have never written any diamond bank test.

Cutehector:
Yorex2011 goodmorning, hope u had a good night rest?

Urm I need ur help with something please. It's based on data reasoning questions.

yorex2011:

sent already thanks. U accepted?

Cutehector:
sent already thanks. U accepted?

send again...