try that(:

& rmb to press the"=" sign after every step

1) key-in the first 3 digits of your handphone number (exclude the '9') into the calculator
2) multiply by 80
3) add 1
4) multiply by 250
5) plus last four digits of phone number
6) plus last four digits of phone number again
7) minus 250
8) divide by 2 at last


Is it your handphone number????

lol guys,
can use this to figure out other's peole number by asking them to
give you the first 3 numbers(excluding '9').

{corrections to the previous post}
lol, i won $50++ , not $40++
count wrongly.
hahaha.

common test today .
wtf,
im so tired now.
i need a break seriously.

hope this yr pass early.
then i can enjoy after O lvl

okay, going off to learn my maths formulas now.
tc(: