Question

subtract.
3 - (-8) =
23 - 28 =

Explanation:

Step1: Simplify 3 - (-8)

Subtracting a negative is adding. So $3-(-8)=3 + 8$.
$3+8 = 11$

Step2: Calculate 23 - 28

Subtract the numbers. $23-28=23+(-28)$.
$23+(-28)=-5$

Answer:

$3-(-8)=11$
$23 - 28=-5$