Question

quanto é -9-5
-2+8
5-2-3
3-9+3
-5-7-3
3+0+5
-3+7-4
-5+2-7
12-8+5

Answer 1

-9-5 = - 14

-2+8 = + 6

5-2-3 =

5 - 5 = 0

3-9+3 =

+ 6 - 9 = - 3

-5-7-3 =

- 5 - 10 = - 15

3+0+5 =

3 + 5 = + 8

-3+7-4 =

7 - 7 = 0

-5+2-7 =

2 - 12 = - 10

12-8+5 =

17 - 8 = 9