1) calcule:
a) -8 + 6 -1 =
b) (+8) - (+5) =
c) -13 + 7 - 2 - 8 + 15 - 1 =
d) -2 -4 -1 =
e) (-8) + (-5) =
f) +22 -3 -14 -5 +24 +12 =
g) 12 -7 +3 =
h) (-3) + (+9) =
i) (-2) - (-3) + (+5)
j) 4 + 13 -21) (+2) + (-7) =
k) (+6) + (-7) - (-2) =
a) -8 + 6 -1 =
b) (+8) - (+5) =
c) -13 + 7 - 2 - 8 + 15 - 1 =
d) -2 -4 -1 =
e) (-8) + (-5) =
f) +22 -3 -14 -5 +24 +12 =
g) 12 -7 +3 =
h) (-3) + (+9) =
i) (-2) - (-3) + (+5)
j) 4 + 13 -21) (+2) + (-7) =
k) (+6) + (-7) - (-2) =
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Resposta:
A) -3
B) 3
C) -2
D) -7
E) -13
F)336
G)8
H)6
I)6
J)-9
K)1