Finite Math equal to Calculus?

no

you could say that calculus studies continuous things,

while finite math studies discrete stuff....

they are different in flavor, but I would not say that either one is difficult.....

Finite math is a loosely group collection of math disciplines that is used to solve real problems (word problems) and can use some calculus, probability and statistics, binomial equations, algebra and just about anything else you can think of. Calculus deals more with the characteristics of curves and concentrates on slopes, areas under the curves, volumes, minima, maxima and such. Finite math is probably less intense but covers more areas of math.

Finite math, or rather "discrete math", is, in my mind, not strictly easier or harder than calculus, although it came before calculus in my schooling.

Check it out on Wikipedia: http://en.wikipedia.org/wiki/Finite_math