Question

a) 12 - 13 =
b) +7 + 15=
-13 + 20 =
d) -2 - 3 =
e) -3 -4 -5 + 12=
f +15 - 15 =
g) -20 + 0 =
h) 4 + 6 + 4 - 6 - 1 =
i) 3.(-4) - 5.(-2)
1)-2- (7-9-3) + 5.(-2)=​

Answer 1

Resposta:

a) 12 - 13 = -1

b) +7 + 15 = 22

c) -13 + 20 = 7

d) -2 - 3 = -5

e) -3 -4 -5 + 12 =  0

f)  +15 - 15 = 0

g) -20 + 0 = -20

h) 4 + 6 + 4 - 6 - 1 = 7

i) 3.(-4) - 5.(-2) = -12 + 10 = -2

1)-2- (7-9-3) + 5.(-2) =​ -2- (-5) + 5(-2) = -2 + 5 - 10 = -7