Question

ayudaaaaaaaa por favor ​

Answer 1

Respuesta:

1.

19 + ( -12 ) = 7

-82 + 9 = 73

6 + (-27) = -21

18 + (-2) = 16

2.

a+b

-5 - 16 = -21

6 + (-18) = -12

-12 + 24 = 12

18 + 31 = 49

a + (-b)

-5 + ( 16 ) = 11

6 + ( 18 ) = 24

-12 + (-24) = -36

18 + (-31) = -13