Respostas

2014-09-03T14:08:34-03:00
-1,5 -(+ 0.4) -(-0,32)
-1,5+ 0,32
-1,18


2014-09-03T14:14:41-03:00
-1,5-(+0.4-(-0,32)=
-1,5 + 0,32 = -1,18