What are the tables for

f (x) = |2x-1|

f (x) = [[x]] + 3

f (x) = -|x-2|

f (x) = |2 [[x-1]]|

f (x) = [[x]]-2

f (x) = 2 [[x+1]]

You mean table of values? You compute them, goodness.

take f(x)=-abs(x-2). Put in values for x, and compute, and tabulate it.

x.....f(x)
0.....2
1.....1
-3....5
100...98
-100..102

and so on.