Question

subtract.
31 - 27 =
9 - (-3) =

Explanation:

Step1: Calculate 31 - 27

Subtract the numbers. $31-27 = 4$

Step2: Calculate 9 - (-3)

Change subtraction of a negative to addition. $9-(-3)=9 + 3=12$

Answer:

$31 - 27 = 4$
$9-(-3)=12$