Find the following.
|273|-|-343|-|12|+|-2|
The absolute value of a number is the number obtained by omitting its sign.
|273|-|-343|-|12|+|-2|=273-343-12+2=275-355=-80
Hence, -80 is the correct answer.
Simplify the following mathematical expression:
555+{22+343-16÷8+13-15}