Question

2- Resolva :
a) ( + 3 ) + ( – 2 ) + ( – 5 )=
b) ( – 2 ) – ( + 1 ) – ( + 5 )=
c) ( + 5 ) – ( – 3 ) – ( – 1) =

Answer 1

Resposta:

A) -4

B)-8

C)+9

Explicação passo-a-passo:

a) ( + 3 ) + ( – 2 ) + ( – 5 )=

(+3) -2 -5

(+3) -7

-4

b) ( – 2 ) – ( + 1 ) – ( + 5 )=

(-2) -1 -5

(-2) -6

-8

c) ( + 5 ) – ( – 3 ) – ( – 1) =

(+5) +3 +1

(+5) +4

+9