Question

a) ( + 12 ) + ( +11 )= b) ( – 23 ) + ( – 4 )= c) ( – 21 ) + ( +12 )= d) ( - 9 ) – ( + 15 )= e) ( +16 ) – ( +20 )= g ) ( - 3 ) - ( - 5 )
+ (

Answer 1

Resposta:

A) 23

B) -27

C) -9

D) -24

E) -4

G) 2, tirando o "+ (" no final