HELP ME TO COUNT

I'd remember that I want to buy a second hand car few times ago...its about $9700.
I came to John and borrowed some money, than he give me $5000..
Than I go to Michael and ask some money too..he gave me $5000 ..

I have $10.000 in my hand..than I have my car now...yippiiii...!!!

Still have $300 in hand..
I give back the money to John and Michael $100 each..

Still got $100 in hand..
(Fiuhhh..)

Going home..lay down on my bed..
Looking my new second hand car from the window..
Counting my debt again..

John..
$5000-$100 = $4900
Michael..
$5000-$100 = $4900

Debt Accumulation for John and Michael : $4900 + $4900 = $9800
Money in hand : $100

Wait a minute..something going wrong here..!!!

$9800 + $100 = $9900

But there was $10.000 before..
THEN WHERE IS $100..???!!!

Its always 13

Lets check your counting ability...

But first of all...GET YOUR CALCULATOR..!!!

Imagine three digits of numbers..(any numbers)

Write it two times on your calculator

(/) with 7

(/) with 11

(/) with your three digits of numbers

aaaand DONE..!!!

RESULT : IT ALWAYS BEEN ON "13"

PROVE :

example :  336

Write it 2 times .....336336

(/) with 7.....336336 : 7 = 48048

(/) with 11.....48048 : 11 = 4368

(/) with your three digits of numbers.....4368 : 336 = 13

1. 
   

ZERO

Imagine any number ( just one number)

(x) with 6

(+) with 12

(/) with 2

(-) with 6

(/) with 3

(-) with your number

AND THE RESULT IS...........ZERO...!!!

counting

lets start your counting ability..

if         1 = 5

and       2 = 10

than      3 = 30

  so guess   4 = ...????

mind test