Respostas

2014-06-24T15:54:38-03:00
+ com - = -
-50+ (-30)+(-12) = -92
  • Usuário do Brainly
2014-06-24T15:56:46-03:00
- (50) + (- 30) + (- 12)
- 50 - 30 - 12
- 92