Question

Cuanto es (-15.5) + (+6.3)=
(-7.7) + (+7.7)=
(-14.8) + (-5.1)=
(-12.1) + (+4.9)=
(-11.4) + (-5.6)=

Answer 1

1) -9.2
2) 0
3) -19.9
4) -7.2
5) -17,0