Respuesta :
Consider the sign closest to the number as the sign of the number, and the other one as the operation between the numbers.
Then + negative is the same as minus
and - negative is the same as plus
So 4 plus -13 = 4 - 13 = -9
6 minus -3 = 6 + 3 = 9
Then + negative is the same as minus
and - negative is the same as plus
So 4 plus -13 = 4 - 13 = -9
6 minus -3 = 6 + 3 = 9