To find \(-123.45 - (-234.76)\), we can use the additive inverse.
The expression can be rewritten as:
\[ -123.45 + 234.76 \]
Now, we perform the addition:
\[ 234.76 - 123.45 \]
Calculating that:
-
Align the numbers:
\[ 234.76 -123.45 \]
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Subtract:
Starting from the rightmost digits:
- 6 - 5 = 1
- 7 - 4 = 3
- 4 - 3 = 1
- 2 - 1 = 1
- 0 (from 2 - 1) and 2 - 0 = 2 (we have borrowed nothing beyond this point)
Putting it all together, we get:
\[ 234.76 - 123.45 = 111.31 \]
So, the answer is:
\[ \boxed{111.31} \]