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Be A Math Genius / do calculations without calculator ..(6 tips) - Education - Nairaland

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Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 1:48pm On Jun 28, 2014
I was wondering why most of Asian kids do better in math and sciences during most international competitions, with my little research on other people and myself I've discovered that one could actually do most mathematical calculations with less/no use of calculator....am i saying that i don't use calculator?.(hell No!!! But not frequently) off course i know calculator where made to safe time and energy and for accuracy , but so some folks (students) have become too use to the calculator that ordinary 8x8 (64) they cant do except with calculator.
A friend of mine told me that, when he went for his p/ume at uniben,("use of calculator, not allowed) during the exams, the person that sat next to him was asking him the result of 6 x4 (24) hmm just imagine that, and he's aspiring to study engineering o , it's really funny..indeed..("could this be exam tension? Probably)

OK, Here are some tips that could be of help to any one who wish to do mathematical calculations with relatively less use of calculator and for exam sake & be a math genius.

1.] LEARN/MEMORIZE FORMULAS .
One of my lecturer told us that, before we graduate, we should know at least 2000 formulas, hmm (kinda impossible abi?... Not really) we gat powerful brain that could memorize almost anything and not just memorizing but knowing how to derive/prove it, it really helps when you know so many formulas (especially when the question is straight forward) and not only that, but applying that formula to different questions (as you know every real life problem have different ways of solving)


2..] REGULAR PRACTICE
During my secondary school days, one my math teacher will say, "solve without thinking" , sounds insane right? , what he actually meant was for us to be able know mathematics to the extend we could attempt the question without thinking much (just within seconds we know what the question is saying and how the final answer will look like.).

when you learn something new in math,try to know different methods that could be used to solve different problems,try to know quicker and more accurate way of solving a given problem, then practice and practice and practice
until it becomes part of you (maybe even in your dreams you could still solve the same problem), solve as many exercises as your hands can lay on,if you come across a "pretty tough" problem,and after much trial but not getting it right, be humble enough to meet your friend or someone else with higher knowledge in math than yourself to put you through, then learn from your mistakes..and keep practicing.

3..] TIME YOURSELF
..when i read about Philip, a Nigerian icon , how he finished an hour math exams in less than half the time(i think, 5mins) and had a perfect score , i almost didn't believe, i know many people wont, either so did his teachers then in his basic school days, some claim he was using magic and all sort..("dono o, only read it)

When i was in sss1, i start timing myself,
i was solving problems on quadratic equation, gat about 40 of them,since i have learnt different methods of solving and was getting it right, i then say let me try and solve some of the exercise in less than half the time , at first i solved about 10 in 6mins,(with 96% accuracy) i was not satisfied with my time.., then i continued , solved about 16 more in less than 10min (with about 90% accuracy) all without using calculator that was when i began to develop on my speed and accuracy, even when i got to the university, i finished a 1hr 30mins maths exams(MA105 , Trig.) in less than 20mins (no joke, no lies no pride) and got more than 90%,.....

4..] TALK LESS /THINK MORE:
Most real genius don't talk much , to really be a maths genius, you must learn to discipline your tongue , Cause the more you talk , the less you assimilate / build up your creativity & IQ , i was a victim till i realized the above point .

5..] G-FACTOR:
..."EXCEPT GOD BUILDS A HOUSE , IN VAIN IS THE WORK OF THE LABORERS , EXCEPT GOD WATCHES A CITY , THE WATCHMEN 'S EFFORT IS INFINITESIMAL ...."

see, whether you like it or not , God remains the giver of life & knowledge ( he's omniscience ) .
most scientist /mathematicians got their inspiration /ideas from God , so pray to him & trust him even in your academics (...trust in the lord with all your heart , and lean not unto your own understanding, in all your ways acknowledge him & he shall direct your path .

6..] KILL THE PRIDE :
The mark of a true hero is humility. To be frank with you , you may be a "genius" being proud /egoistic , but only for a shot time neither will you make substantial impact/impart in your immediate environ & generations to come , you hardly get to learn much , people get to hate you & they hardly will share useful information with you .

there was this friend of mine , real math genius , when he was in secondary school , one of my my aunt then in a higher institution was given an assignment on calculus, which she didn't know how to solve , tried & tried ,no way. took it to some folks ,still no green light , then i suggested she should show that my friend but said this is advance level stuff oo , how could a secondary school dude know the solution. (you see pride ? ) but she later did & to her surprise he devoured the question with confirm solution , since then she always humbled herself to learn from him .

those worked/ are working for me
you could try too.

Hope this little write up impart,

please add more tips that would be of help....

thanks for your time

1love.

12 Likes 2 Shares

Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Kendzyma(m): 2:34pm On Jun 28, 2014
Nice1 ben
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by emmyw(m): 2:50pm On Jun 28, 2014
Great write up,i love it,its motivating.
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 6:47pm On Jun 28, 2014
thanks guys

feel free to make your contributions .
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by psychologist(m): 7:32pm On Jun 28, 2014
No 5 first and others will be added to you
@ op dz rili motivating
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by ookunlola(m): 5:21am On Jun 29, 2014
Nice post, to add; always surrounding yourself with friends that love figures. iron sharpens iron.
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 7:25am On Jun 29, 2014
Nice tips you've got there general benbuks...howdy?
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Chrisdmeek(m): 10:11am On Jun 29, 2014
I luv this
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 12:33pm On Jun 29, 2014
doubleDx: Nice tips you've got there general benbuks...howdy?

thanks man ..... your boy is fine oooo ..so far , so good , so sweet . oluwa has always been involved .


your contribution will be pivotal sir , perhaps include your experiences

thanks.


happy Sunday

1 Like

Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 1:08pm On Jun 29, 2014
@ MODS push to front page for others to learn thanks

1 Like

Re: Be A Math Genius / do calculations without calculator ..(6 tips) by bhaliz44(m): 2:40pm On Jun 29, 2014
benbuks: @ MODS push to front page for others to learn thanks
hahaha so fast? anyway the post deserves it. nice one cheesy
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 4:59pm On Jun 29, 2014
bhaliz44: hahaha so fast? anyway the post deserves it. nice one cheesy

Why not brah? People love Math but they fear it because they think it's difficult to understand...the irony is that Math is true; the truth, a universal language that is easy to understand...following the tips posted by benbuks will make anyone a Math genius! it's that simple.....it deserves to be on the FP!
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 10:14am On Jul 01, 2014
calnewport.com/blog/2011/04/28/on-becoming-a-math-whiz-my-advice-to-a-new-mit-student/
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 2:59pm On Jul 09, 2014
Shortcuts in multiplying / dividing any integer by 5 & it exponential multiples

for '5'

the product of 5 & any integer , put a zero in front of the number then divide by 2

e.g

5x1 =10/2 =5

5x2=20/2 =10

5x3=30/2=15

5x4=40/2=20
.
.
.& so on

thus
=> 5xn =n'0' /2


for '25'

to multiply 25 by any integer , put TWO zeros in front of the number , then divide by 4

e.g

25 x5 =500/4 =125

25x8=800/4=200

25x 12=1200/4=300

& so on

thus
=> 25xn = n'00' /4


for '125'

put THREE zeros then divide by 8

e.g 125 x2=2000/8 =250

125x3=3000/8 = 375

125 x 4=4000/8=500

... & so on

hence , i can conclude that

5^(a) x n =( n 'a zeros' )/2^a ........for all a ,n € Z

4 Likes

Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nastydroid(m): 3:23pm On Jul 09, 2014
Nice points
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 3:30pm On Jul 09, 2014
Now the division

for '5'

to take the ratio of an integer with 5 , given the integer is greater , multiply the integer by 2 ( i.e 2n) then divide by 10 (i.e 2n/10)

e.g

10/5 =2x10/10 = 2

15/5 = (2x15)/10 =30/10 =3

20/5 =(2x20)/10 =40/10=4

.
.
.
& so on

=n/5 = 2n/10 ...(for n>5)


for

'25'

multiply by 4 then divide by 100

e.g

50/25 = (4x50)/100 =2

100/25 =(4x100)/100=4

150/25 =(4x150)/100 = 6

.
.
. & so on

=> n/25 =4n/100 ........(for n>25)

similarly , for '125'

*8 /1000

e.g

625/125 = (8x625)/1000 =5

1250/125 = (8x1250)/1000=10

2500/125= (8x2500)/1000 =20
.
.
.
& so on

thus => n/125 = 8n/1000


i could also conclude that

n/5^a = (2^a x n ) / 1'a zeros ' .......(for all a, n € Z)

that's it for now , more to come

feel free to make your contributions

1 Like

Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 10:22pm On Jul 12, 2014
to multiply by 6

6xn = n '0'/2 + n

e.g 6x1=10/2 + 1 = 5+1=6
6x2=20/2 =10 +2 =12
6x3=30/2 =15 +3 =18
6x4=40/2 =20 + 4 =24
& so on

try this in 5sec

6x666=?

1 Like

Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 10:26pm On Jul 12, 2014
more to come .....you could add yours ...
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by FuckYou: 8:35pm On Jul 15, 2014
Good
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by SupaJoe(m): 8:47pm On Jul 15, 2014
intresting write up......a thumb 4 u man@Benbuks
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 7:15am On Jul 24, 2014
SupaJoe: intresting write up......a thumb 4 u man@Benbuks

thanks man..
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Itoroetti(m): 10:45pm On Jul 24, 2014
maths is life.when i got admission to d higher institution that was when i developed love for mth.
my plan is to ensure my future kids will be d best in maths by adopting asian style or even sending them to schools in asian.when i watched documentary of those guys on mth,i weep.they re just far ahead.
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 3:14pm On Aug 03, 2014
Itoroetti: maths is life.when i got admission to d higher institution that was when i developed love for mth.
my plan is to ensure my future kids will be d best in maths by adopting asian style or even sending them to schools in asian.when i watched documentary of those guys on mth,i weep.they re just far ahead.

yes bro....na bad guys dem b 4 maths oo

computer brain ni. ..
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Chuksemi(m): 4:56pm On Aug 12, 2014
benbuks:

yes bro....na bad guys dem b 4 maths oo

computer brain ni. ..
THIS THREAD IS SO IMPORTANT.... The maths multiplication equation you were posting.. Is it some form of brain test?
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Chuksemi(m): 5:10pm On Aug 12, 2014
benbuks: to multiply by 6

6xn = n '0'/2 + n

e.g 6x1=10/2 + 1 = 5+1=6
6x2=20/2 =10 +2 =12
6x3=30/2 =15 +3 =18
6x4=40/2 =20 + 4 =24
& so on

try this in 5sec

6x666=?
3996, I did this mentally but not in 5 seconds though, I think in 15. I used the above process. I wish to know, is the above procedure a credible and reliable way for solving problems relating to multiplication? Does it apply to other numerals as well? I also did the other ones, I think division, the rules there are they reliable too? Please if this rules are credible. Please show me how to apply them to other numerals, I am really impressed. Thank you very much my OGABOSS.
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by akpos4uall(m): 6:39pm On Aug 22, 2014
Chuksemi:
3996, I did this mentally but not in 5 seconds though, I think in 15. I used the above process. I wish to know, is the above procedure a credible and reliable way for solving problems relating to multiplication? Does it apply to other numerals as well? I also did the other ones, I think division, the rules there are they reliable too? Please if this rules are credible. Please show me how to apply them to other numerals, I am really impressed. Thank you very much my OGABOSS.
Of course it is reliable. Here is why;
Check well;
What he gave is true because
5*n = n*10/2
6*n = n*10/2 + n = 5n + n = 6n
25*n = n*100/4
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 1:46pm On Aug 30, 2014
akpos4uall:
Of course it is reliable. Here is why;
Check well;
What he gave is true because
5*n = n*10/2
6*n = n*10/2 + n = 5n + n = 6n
25*n = n*100/4

yes man..on point .
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 1:47pm On Aug 30, 2014
Chuksemi: THIS THREAD IS SO IMPORTANT.... The maths multiplication equation you were posting.. Is it some form of brain test?
yea bro.

kinda...
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 2:13pm On Aug 30, 2014
doubleDx:

Why not brah? People love Math but they fear it because they think it's difficult to understand...the irony is that Math is true; the truth, a universal language that is easy to understand...following the tips posted by benbuks will make anyone a Math genius! it's that simple.....it deserves to be on the FP!


yea man.


can the MOds kindly consider this for front ..?
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 8:12pm On Aug 30, 2014
benbuks:


yea man.


can the MOds kindly consider this for front ..?

It's definitely a front page material; I can't understand why threads like these don't make front page! It's threads about entertainment, private jets, Davido this, Tonto that and craps you see on the FP. Where is Richiez these days? Maybe you should PM him to move the thread 2 Super-MODs for evaluation! This one wey Seun dey find traffic sef grin and youths these days don't care about education anymore...smh!
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Hopeyeme: 9:19pm On Aug 30, 2014
Its motivating oo i wish i cul stay longer period in solvin maths..is my enemy tru my sec nd pd day nd i pay 4 its..bt nw am getting better thank God 4 dat nd my mum maths may b easy wit dose tips
Re: Be A Math Genius / do calculations without calculator ..(6 tips) by Nobody: 12:08pm On Jul 10, 2015
Hi Nairalanders,

I am running a website that does calculations and shows the steps of the calculation right up to the answer online at www.nickzom.com. Right now I have over 90+ heavy calculation web applications and I want to add some more.

If there is any calculation problem which you cannot carry out in a calculator that you would like to be provided to you 24/7 within seconds online. Please indicate and also write the topic of the calculation. If I am not familiar with the topic, I will definitely contact you. Many students have benefited from my website. You can also enjoy from it.

You can email me at cidokonicholas@gmail.com

I am here to serve.

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