Question

1) afetue as adições :

a) ( +2) + ( +3) =

b) ( +1 ) + ( +8) =

c) ( +3) + (+11) =

d) (- 1 ) + (- 2) =

e) (- 3 ) + ( - 2) =

f) 0+( - 2) =

g) (+ 7 ) + (+ 2) + (+ 5 ) =

h) (+4 ) + (+1 ) + (+ 8 ) =

i) (+3 ) + ( +8 ) + (+15 ) =

j) (- 8 ) + ( - 2 ) + ( - 1 ) =

k) ( - 9 ) + ( - 4 ) + ( - 3 ) =

l) ( -10 ) - ( - 20 ) + ( - 30 ) =
​

Answer 1

Resposta:

A = 5

B = 9

C = 14

D = (-3)

E = (-5)

F = -2

G = 14

H = 13

I = 26

J = (-11)

K = (-16)

L = (-60)

Espero ter ajudado! ^-^