Question

EFETUE:

-1-2-3=

-4-5-8-10:

-7+20-15+20-1=

+8-10-7+13-14+5-6=

-(3+7-9+5-13)=

-20+10+17-3+4-7+8-1=

-8-10+17-3+4-7+8-1=

-6-7-13-26+54-2=​

Answer 1

Resposta:

-1-2-3=  -6

-4-5-8-10= -27

-7+20-15+20-1=  17

8-10-7+13-14+5-6= -11  

-(3+7-9+5-13)=  7

-20+10+17-3+4-7+8-1=  8

-8-10+17-3+4-7+8-1=  0

-6-7-13-26+54-2=​ 0

Espero ter ajudado :)