Question

a) – 4 - ( - 7 ) = RESOLVA O MAIS RAPIDO POSSIVEL
b) 15 + ( - 3 ) =
c) – 8 - ( - 4 ) + ( + 2) =
d) - 2 + (- 10 ) =
e) 8 - ( - 1 ) =
f) 5 + ( + 12 ) =
g) – 7 - ( - 11 ) =
h) – 3 - 4 – 2 =
i) + 250 + 50 + 80 =
j) + ( - 11) + 0 =
k) – ( - 4 – 4 ) =
l) ( + 16 ) – ( + 16 ) =

Answer 1

a) – 4 - ( - 7 ) = -4 + 7 = +3

b) 15 + ( - 3 ) = 15 - 3 = 12

c) – 8 - ( - 4 ) + ( + 2) = - 8 + 4  + 2 = -4 +2 = -2

d) - 2 + (- 10 ) = -2 - 10 = -12

e) 8 - ( - 1 ) = 8 +1 = 9

f) 5 + ( + 12 ) =5 + 12 = 17

g) – 7 - ( - 11 ) = -7 + 11 = +4

h) – 3 - 4 – 2 = - 9

i) + 250 + 50 + 80 = +380

j) + ( - 11) + 0 =  -11

k) – ( - 4 – 4 ) = - ( -8 ) = +8

l) ( + 16 ) – ( + 16 ) = 0

Answer 2

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