is a Positive or Negative. Is if the Numbers

are both positive then you would get a 

positive. If the Numbers were both Negative

you would get a negative answer. If the Numbers

are different you need to use KCC the opposite

of a negative and positive it is going to become the

different answer. the way we would know if the answer

is a zero would be if the one of the numbers was

a Negative or Positive and they were the same and

added up equally.

because for example if the larger number is

positive then you take the positive sign and

put it on the answer, but if the biggest number

that your adding is a negative then you take the

sign and then your answer should be negative

for example :

-23.98 - 17.38 =

KCC

-23.98 + -17.38 = -41.36

^^^^^^^^^^^^^^^^^^^

if both numbers are negative then just add a negative sign

same with positive :)