Question

10+(-6)
99+(-1)
23+(-7)
-2.9+0.9
84+(-4)
5.6+(-8.7)

Answer 1

Ответ:

4

15

-2

80

-3.1

.........

Answer 2

10+(-6)=4.
99+(-1)=98.
23+(-7)=16.
-2.9+0.9=-2
84+(-4)=80.
5.6+(-8.7)=-3.1