Math Trick

Here is a Maths Trick that will stump you.....

1. Grab a calculator (You won't be able to do this in your head)
2. Key in the first 6 digits of your mobile no.
3. Multiply by 80
4. Add 1
5. Multiply by 250
6. Add the last 4 digits of your mobile no.
7. Add the last 4 digits of your mobile no. again
8. Subtract by 250
9. Divide by 2
10. See the result!


P/S: Honestly, haven't try this for myself :P