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

U red the vidic math it has lot like that

Yes.

I am very week at maths.

111,111,111 x 111,111,111 = 12345678987654321
i.e., the square of 111,111,111 is a seventeen digit palindrome number.

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

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

You can close youe eyes with a transparent cloth and cut

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

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