Question

add.
$-3 + (-5) = square$
$4 + (-5) = square$

Explanation:

Step1: Add two negative numbers

$-3 + (-5) = -(3+5) = -8$

Step2: Add positive and negative numbers

$4 + (-5) = 4 - 5 = -1$

Answer:

$-3 + (-5) = -8$
$4 + (-5) = -1$