Author Topic: How To Do Mathematics Fast  (Read 17810 times)

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Re: How To Do Mathematics Fast
« Reply #1 on: December 29, 2007, 07:00:27 PM »
thank u Mike, I've learned something new today!

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Re: How To Do Mathematics Fast
« Reply #2 on: December 29, 2007, 07:03:45 PM »
thank u Mike, I've learned something new today!

You're welcome, willmerit. God bless. Happy New Year nimo diha.

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Re: How To Do Mathematics Fast
« Reply #3 on: December 29, 2007, 07:07:52 PM »
Thanks a lot jud.  Tungod aning tb, nainspire kog mata ug sayo, hehehhehe,  nagpaila jud nga labihang adika na.  Pagmata, ang tb dayon ang giatubang. 

God bless and may you have a happy, and prosperous new year.

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Re: How To Do Mathematics Fast
« Reply #4 on: December 30, 2007, 07:53:15 AM »
Mura man nuon nisamot ko klaibog sa kadaghan sa explaination hehe

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Reply: How To Do Mathematics Fast
« Reply #5 on: February 04, 2008, 12:10:02 AM »
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fdaray

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Re: How To Do Mathematics Fast
« Reply #6 on: March 05, 2008, 08:26:35 AM »
These are some Mathematricks:
     There are eight 8"s.   88888888. Make these as addends and the sum is 1000.
         Its easy .   888
                      +    88
                              8
                              8
                              8
                       ______
                        1000

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Re: How To Do Mathematics Fast
« Reply #7 on: March 05, 2008, 09:46:57 AM »
 Mathematricks again.

What is your favorite number? Only one number.   
My favorite unmber is 6.
I  will show  nine 6's
     Multiply 12345679                            12345679
                 x       36      9 x 4                   x     72      9 x 8
              ___________                        __________
               666666666                           888888888             
                 
       The secret number is 9.  9 x the  number you want to show x 12345679.

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fdaray

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Re: How To Do Mathematics Fast
« Reply #8 on: March 07, 2008, 12:38:14 PM »
There are seven 9's     9999999.
Make a combination  so that it is equal to 1000.

Easy: It is a fraction 999 and 99 99. The whole number is 999, the numerator
             is 99 and the denominator is 99.
   
             999 99/99 = 1000
             

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Re: How To Do Mathematics Fast
« Reply #9 on: March 07, 2008, 12:44:31 PM »
All time favorite Calculus equation has got to be the Taylor series:
Taylor series is y(x + h) = y(x) + y'(x)h + y"(x)h2/2! + ..., helps in calculating infinite series, addressing convergence and uniform convergence.

Probably the only thing in calculus that didn't bore me.

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Re: How To Do Mathematics Fast
« Reply #10 on: March 07, 2008, 12:45:28 PM »
Mathematricks again.

What is your favorite number? Only one number.   
My favorite unmber is 6.
I  will show  nine 6's
     Multiply 12345679                            12345679
                 x       36      9 x 4                   x     72      9 x 8
              ___________                        __________
               666666666                           888888888             
                 
       The secret number is 9.  9 x the  number you want to show x 12345679.

Bravo, Mr. Daray!

I liked that, LoL!

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fdaray

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Re: How To Do Mathematics Fast
« Reply #11 on: March 07, 2008, 12:52:58 PM »
Do you know how to multiply two digits by two digits beginning with 1 not using the standard form ?     
              15         
          x   16          Multiply 5 x 6 = 30, Carry 3  + 5  + 6  = 14, carry 1  + 1 x 1 = 2
       _________                               
               240                                                   

                           

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Re: How To Do Mathematics Fast
« Reply #12 on: March 07, 2008, 01:07:13 PM »
You know this like the back of your palm, eh fdaray?

:)

Math, the universal language.

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Re: How To Do Mathematics Fast
« Reply #13 on: March 07, 2008, 01:13:47 PM »
Success is a ladder you cannot climb with your hands in your pockets.

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Re: How To Do Mathematics Fast
« Reply #14 on: March 07, 2008, 02:17:23 PM »

Sorry guys, for me, why bother, I just have to push buttons on my calculator and I'm done. NO rules no nothin!

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Re: How To Do Mathematics Fast
« Reply #15 on: March 07, 2008, 02:32:11 PM »

Wow, this is really cool! It's a very good trick to multiply big numbers without calculator!  Thanks, Mike, for sharing this! 

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Re: How To Do Mathematics Fast
« Reply #16 on: March 07, 2008, 05:02:21 PM »
"All that is needed for evil to succeed is, that decent human beings doing nothing". (Edmund Burke)

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Re: How To Do Mathematics Fast
« Reply #17 on: March 07, 2008, 05:25:31 PM »

mao raba ni ahung kontra ning math sa eskwelahan, maayo ni kay pang dugang ug magkalisud sa numero, pwidi sad tudlo lang gamiton kung mutiplication lang ang sulbarun, he, he

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Re: How To Do Mathematics Fast
« Reply #18 on: March 07, 2008, 05:46:09 PM »
All time favorite Calculus equation has got to be the Taylor series:
Taylor series is y(x + h) = y(x) + y'(x)h + y"(x)h2/2! + ..., helps in calculating infinite series, addressing convergence and uniform convergence.

Probably the only thing in calculus that didn't bore me.

I hate Calculus!

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Re: How To Do Mathematics Fast
« Reply #19 on: March 08, 2008, 12:24:34 AM »
Magsakit ako mata aning matikmatik oi ;D

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Re: How To Do Mathematics Fast
« Reply #20 on: March 08, 2008, 04:15:40 AM »
http://www.youtube.com/watch?v=_eFnzNw10Qc

Para sa mga mahilig magkinamot!

Mao pod ni akong technique!

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Re: How To Do Mathematics Fast
« Reply #21 on: March 08, 2008, 04:18:24 AM »
ang pinakakuyaw ug math katong mga cristo sa buwangan...perteng maayoha mo kwenta sa mga pusta bisan pag 100 pa katao mosugal di jud masayop pagkwenta bisag walay gamit calculator.

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Re: How To Do Mathematics Fast
« Reply #22 on: March 08, 2008, 04:45:24 AM »
...plus, photographic memory pa jud to sila, kay di man sila kalimot sa mga mopusta nga ipang buno ra man ang mga datung, inig sugod na ug Sabong!

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Re: How To Do Mathematics Fast
« Reply #23 on: March 08, 2008, 09:36:08 AM »
Ask your partner to think two digit numbers.  Ex. 98. Add 9+ 8 = 17.
                                              98
                                            - 17
                                          ______
                                               81
Ask your partner to give one number of the difference. Guess the other one.
If 1 is given, subtract 9-1= 8.
 The secret is number 9 is always subtracted to get the other number.

Try.



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Re: How To Do Mathematics Fast
« Reply #24 on: March 08, 2008, 09:52:33 AM »
Yes ,Mathematics is a universal language. It is not an exact language because there in no exact value of pi 3.1416.......... There no is exact thing in this wide wide world.

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fdaray

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Re: How To Do Mathematics Fast
« Reply #25 on: March 10, 2008, 12:39:34 PM »
A farmer has l7 carabaos. He will divide live proportionaly to his three children. A will have 1/2, B will have 1/3 and C will have 1/9.  How much will each children have?

Solution: Let us borrow  one carabao from your neighbor. 17 + 1 = 18
               Let us divide. 1/2 of 18 = 9 for Child A
                                  1/3 of 18 = 6 for Child B
                                  1/9 of 18 = 2 for Child C
                                        ___________
                                                  17 carabaos. Return the carabao you borrowed.
 
This can be solved by partitive proportion.

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Re: How To Do Mathematics Fast
« Reply #26 on: March 10, 2008, 12:41:25 PM »
All time favorite Calculus equation has got to be the Taylor series:
Taylor series is y(x + h) = y(x) + y'(x)h + y"(x)h2/2! + ..., helps in calculating infinite series, addressing convergence and uniform convergence.

Probably the only thing in calculus that didn't bore me.

I hate Calculus!

'te this is probably a piece of cake for you.

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Re: How To Do Mathematics Fast
« Reply #27 on: March 10, 2008, 12:42:17 PM »
Yes ,Mathematics is a universal language. It is not an exact language because there in no exact value of pi 3.1416.......... There no is exact thing in this wide wide world.

Mr. Daray,

That is true. So very true.

Keep on teaching,



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Re: How To Do Mathematics Fast
« Reply #28 on: March 11, 2008, 07:53:00 AM »
Look for a partner. Let him solve secretly and folow  your instructions.
Think of two digit number. N x 2 +5 x 50  + Age of your partner + 365 - 6l5 = Final answer.
                             
                                Ask for the final answer.
                                The first two digit is the number he  think and the  last two digit is  his
                                 age.

Try. 12 is N x 2=24 +5 = 29 x 50 = 1450 + 60 (Age) = 1510 + 365 = 1875 - 615 = 1260 is the final answer.    12 = N,    60= age.



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Re: How To Do Mathematics Fast
« Reply #29 on: March 11, 2008, 10:00:19 AM »
Another way of adding and subtracting fraction not using the lcd method (least common denominator method)

       2           3
      ___   + ____ =      Get the cross products and add  over the product of the demoninators.
       3           5
                             3 x 3 + 2 x 5 =    19
                                                   ____
                                           3 x 5=  15
         
                                                   
                                                     19/15    =  1  4/15
 
For subraction. use the same procedure
           
                   2      3
                 ___ - __=    2 x 5 - 3 x 3 =   10 - 9=  1/15
                   3       5               3 x 5 =             
                                                                       
                                               
                                                             

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Re: How To Do Mathematics Fast
« Reply #30 on: March 12, 2008, 07:53:37 AM »
What level are you teaching, Mr. fdaray?

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Re: How To Do Mathematics Fast
« Reply #31 on: March 12, 2008, 08:15:29 AM »
integral og differential wow nakutaw jud ko ani
plus naa pa jud mechanics mga forces of nature

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Re: How To Do Mathematics Fast
« Reply #32 on: March 12, 2008, 11:42:05 AM »
I'm teaching Science and Mathematics in Grade Vl

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Re: How To Do Mathematics Fast
« Reply #33 on: March 12, 2008, 11:42:08 AM »
i really hate math but i love its applications like differential equation, matrices, and Laplace transformation

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Re: How To Do Mathematics Fast
« Reply #34 on: March 12, 2008, 01:53:09 PM »
Follow the following:

Ask your friend to think of a number.
Tell him to add seven.
Multiply the sum by two.
Subtract two.
Ask your friend to tell you the answer and you will give him the number he thought of.

THe secret is  divide the answer given by your friend by two and subtract six.

Lets try: Think of the number 7.   7  + 7= 14 x 2 = 28 - 2 = 26 is the last answer

       26 divided by 2 = l3 - 6 = 7, the number he thought of.


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Re: How To Do Mathematics Fast
« Reply #35 on: March 12, 2008, 04:18:54 PM »

I guess all the people who hate math end up working with numbers. ;D

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Re: How To Do Mathematics Fast
« Reply #36 on: March 13, 2008, 05:40:38 AM »
I didn't particularly hate Math but that wasn't my favorite subject.  And yes, I ended up studying the intricate business of accounting! ;D

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fdaray

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Re: How To Do Mathematics Fast
« Reply #37 on: March 13, 2008, 08:14:15 AM »
Make an equation using these numbers:  1 2 3 4 5 6 7 8 9 consecutively equal to 100.
Put these signs:  +  -  x  between the numbers.

Example: 1 + 2 +3 + 4 + 5 + 6 + 7 + 8 x 9= 100


Make three more equations.


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Lorenzo

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Re: How To Do Mathematics Fast
« Reply #38 on: March 13, 2008, 01:20:41 PM »
I bow to men and women who work with mathematics and excel in its theories. Its a gift jud.

As for me, I can do math, but its not one of my favorite subjects. I'm more science oriented.

I really have a high regard for mathematicians, statisticians, theorists etc., the way their brain works is superb. Keep up the work, guys, and more power to those who love Math!

Mr. Daray, you have my respect, sir.



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Kyle828

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Re: How To Do Mathematics Fast
« Reply #39 on: March 14, 2008, 02:57:41 AM »
I love math!
Next year I'll be in 6th grade, but I'll be doing 7th grade math!

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