Rajesh Verma (Feb 22, 2003 11:56 a.m.):
Thats a nice trick.
Rajesh Verma (Feb 22, 2003 12:09 p.m.):
Any 2 digit number, if you add the digit and substract it from the original number the resulting number is multiple of 9 so the number 0,9,18,27,36,45,54,63,72,81 and the symbol for these number is always the same.
We use essential cookies to make this site work, and optional cookies to enhance your experience.