Question

compute.
-6.544 - 2.78 =
14.25 + (-27.381) =

Explanation:

Step1: Rewrite subtraction as addition

$-6.544 - 2.78 = -6.544 + (-2.78)$

Step2: Add the negative numbers

$-6.544 + (-2.78) = -(6.544 + 2.78) = -9.324$

Step3: Rewrite addition of negative

$14.25 + (-27.381) = 14.25 - 27.381$

Step4: Calculate the difference

$14.25 - 27.381 = -(27.381 - 14.25) = -13.131$

Answer:

$-6.544 - 2.78 = -9.324$
$14.25 + (-27.381) = -13.131$