Write a function

Hello. I am trying to write this function more dynamic.
var number:Number = 37;
var dif:Number;
var dif2:Number;
var dif3:Number;
var const:Number = 12;
dif = number - const;
dif2 = dif - const;
dif3 = dif2 - const;

function number_fct() {
if (number > const || dif > const || dif2 > const) {
trace(dif);
trace(dif2);
trace(dif3);
}

}
number_fct();

Like, not to have all the dif2, dif3, or maybe dif4 because all depends on the var number which can be bigger then 37, and not to have all the conditions in the if statement.
Any suggestions?
Thank you.