give me any number between 1 and 13

lets call this number x

so here goes.

chose a random number between 1 and 13 we will call this number X.

(x+4) multiplied by 2 -6 devided by 2 minus x

so basicly (x+4)x2-6/2-x

then you will know what number they are left with.

the number 1

lets say my number is 7

7+4=11

x 2 = 22

-6 =16

16/2 =8

-7=1

i found this kinda fun (you know any other non smart "tricks" we can use at a party)?)