#### Answer

$3$

#### Work Step by Step

$-5+8$
This expression is the same as
$8-5=3$
Remember, with different signs, subtract the absolute values, and then apply the sign of the larger absolute value.
The absolute values of the above terms would be:
8 and 5, whose difference is 3, and the sign of the greatest absolute value is positive, so the answer is 3.