Question

Evaluate:$\left|-87\right|+\left|-31-\left(-8\right)\right|$.

Answer 1

Step:Simplification.

$\left|-87\right|+\left|-31-\left(-8\right)\right|=\left|-87\right|+\left|-31+8\right|$ ($\because -\left(-8\right)=+8$)

$=\left|-87\right|+\left|-23\right|$

$=-\left(-87\right)+\left[-\left(-23\right)\right]$ ($\because \left|\mathrm{a}\right|=-\mathrm{a}$, if $\mathrm{a}\mathrm{is}\mathrm{less}\mathrm{than}0$)

$=87+23$

$=110$

Therefore, the required answer is $110$.