GODDAMN QUOTING IN RACKET

I'm trying to demonstrate to someone a simple case dispatch on a list.

The idea is something like:

(define (math x y)
        (unquote (get-math x) y))

Where y is a list and:

(define (get-math x)
        (cond ((= x 1) '+)
              ((= x 2) '-)
              ((= x 3) '*)
              ((= x 4) '/)))

But, Racket just doesn't use normal quoting rules, like I can only unquote if I'm already in a quote, but I can't pass an unquote to an argument, or nor use unquote in a definition without being a quote anyways, which is RETARDED.

tl;dr quote comes BEFORE unquoting, what do?