Respuesta :

posted by: Piradii2 Ambitious (https://brainly.com/question/2599471)

"63.56 + ( - 81.47 ) = 63.56 - 81.47

positive times negative becomes negative."

This was Piradii2 Ambitious's answer to the same question on Brainly all credit goes to Piradii2 Ambitious!