14. Calcule o valor de:

a) 3 + 2 – 4 =
b) 12 + 5 – 8 =
c) 7 – 3 + 5 =
d) 8 – 1 + 2 =
e) – 3 + 5 – 2 – 9 =
f) 7 + 8 – 6 – 4 – 3 =
g) – 5 + 4 – 2 – 7 + 3 =
h) 23 – 45 – 12 + 67 =
i) 72 – 24 – 56 + 13 =
j) 68 – 34 – 54 + 43 =
k) – 27 – 35 – 68 – 98 =
l) 48 + 25 + 79 – 99 =
m) 59 – 43 – 76 + 24 =
n) 86 – 64 – 78 + 28 =
o) 68 – 65 – 89 – 24 =
p) – 46 + 25 – 135 + 47 =
q) 90 – 40 – 37 + 62 =
r) 73 – 87 – 98 + 97 =
s) 27 – 74 – 31 + 38 =
t) 88 + 54 + 99 – 43 =
u) 87 – 54 – 34 + 33 =
v) –20 + 30 + 20 – 30 =
w) –13 + 46 + 13 – 46 =
x) 98 – 65 – 87 + 95 =
y) 77 – 66 + 22 + 55 =
z) 127 – 67 + 86 – 34 =

resposta com a continha pfvvvv
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