Q.

Can anybody share a smart mathematical trick?

Asked by rupa aishwaria,
09 Jun '09 08:47 am

Earn 10 points for answering

Answers (12)

1.

Souvick mukherjee

1.Write down numbers from 1 to 100

2.assign a different symbol to each one of them noting u assign the same symbol for all numbers which r multiples of 9.

3.ask a mate to think of any number between 10 to100.

4.ask him to add the digoits of the number in his mind.eg for 13 he must add 1+3.

5.ask him to subtract the result from the number he thought at first.

6.ask him to note the synbol beside the number which is the final result.

7.u can guess it its da symbol assigned to the multiples of nine u ave bcom a mindreader

Answered by Souvick Mukherjee, 10 Jun '09 06:24 am
1.Write down numbers from 1 to 100

2.assign a different symbol to each one of them noting u assign the same symbol for all numbers which r multiples of 9.

3.ask a mate to think of any number between 10 to100.

4.ask him to add the digoits of the number in his mind.eg for 13 he must add 1+3.

5.ask him to subtract the result from the number he thought at first.

6.ask him to note the synbol beside the number which is the final result.

7.u can guess it its da symbol assigned to the multiples of nine u ave bcom a mindreader

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2.

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3.

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4.

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5.

111,111,111 x 111,111,111 = 12345678987654321

i.e., the square of 111,111,111 is a seventeen digit palindrome number.

Answered by Surender Reddy, 09 Jun '09 11:13 pm
i.e., the square of 111,111,111 is a seventeen digit palindrome number.

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6.

Here it is!

* Go and hide in a cupboard, or cover your eyes in some way so that you can't see what your friend is writing.

* Ask a friend to secretly write down ANY number (at least four digits long). e.g. 78341

* Ask the friend to add up the digits... e.g. 7+8+3+4+1 = 23

* ... and then subtract the answer from the first number.e.g. 78341 - 23 = 78318

* Your friend then crosses out ONE digit from the answer. (It can be any digit except a zero) e.g. 7x318

* Your friend then reads out what digits are left.e.g. 7-3-1-8

* Even though you haven't seen any numbers, you can say what the missing digit is! EIGHT

...more

Answered by anil garg, 09 Jun '09 10:59 pm
* Go and hide in a cupboard, or cover your eyes in some way so that you can't see what your friend is writing.

* Ask a friend to secretly write down ANY number (at least four digits long). e.g. 78341

* Ask the friend to add up the digits... e.g. 7+8+3+4+1 = 23

* ... and then subtract the answer from the first number.e.g. 78341 - 23 = 78318

* Your friend then crosses out ONE digit from the answer. (It can be any digit except a zero) e.g. 7x318

* Your friend then reads out what digits are left.e.g. 7-3-1-8

* Even though you haven't seen any numbers, you can say what the missing digit is! EIGHT

...more

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7.

Sure take

5 + 5 + 5 = 550

you should do it with only one stroke of line.

put a stroke on the first plus to make it 4

Answered by Wolverine Logan, 09 Jun '09 10:27 pm
5 + 5 + 5 = 550

you should do it with only one stroke of line.

put a stroke on the first plus to make it 4

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8.

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9.

Do this simple mathmathical calculation. i shall post the answer of this calculatiion in advance in your message box

think of a number,

multiply by two

add 27

divide by two

subtract the original number you thought of

look out for the answer in your message box

Answered by Ganadhisha, 09 Jun '09 09:57 pm
think of a number,

multiply by two

add 27

divide by two

subtract the original number you thought of

look out for the answer in your message box

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10.

Here a trick to learn table no 9

first of all write as

9 x

9 x

9 x so on 10 times

then beside that write serial nos 0 to 9 in ascending order

then write beside that 9 to 0 in descending order

see the magic you will find table of 9

Answered by ANAND, 09 Jun '09 07:14 pm
first of all write as

9 x

9 x

9 x so on 10 times

then beside that write serial nos 0 to 9 in ascending order

then write beside that 9 to 0 in descending order

see the magic you will find table of 9

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