To evaluate the expression \( 112.212 - (-3.25) \), you need to remember that subtracting a negative number is the same as adding the positive value of that number.
So, you can rewrite the expression as:
\[ 112.212 + 3.25 \]
Now, let's perform the addition:
\[ 112.212 + 3.25 = 115.462 \]
Thus, the value of the expression \( 112.212 - (-3.25) \) is:
\[ \boxed{115.462} \]
That corresponds to option D.