1) Resolva as operações:
a) 10 – 3 – 1 =
b) +1 – 7 – 5 – 5 =
c) – 6 + 10 – 8 – 3 – 1 =
d) – 4 – 7 + 7 + 5 + 9 =
e) – 5 – 1 – 2 + 2 +3 =
f) 12 – 1 + 8 – 1+ 3 =
g) 10 + 7 – 1 – 3 + 1 + 5 =
h) 18 – 5 – 2 + 8 – 6 =
i) 7 – 3 + 2 – 8 – 6 =
j) – 1 – 10 + 8 – 3 =
k) – 2 – 4 + 8 – 3 + 8 =
l) 7 – 1 – 5 + 1 – 1 =
m) – 6 + 8 – 8 – 3 – 6 =
n) 9 + 10 + 5 – 1 + 1 =
o) 10 + 5 – 3 – 3 + 2 – 8 =
p) – 9 + 7 – 1 – 4 + 2 =
q) 4 + 1 – 5 – 9 + 3 – 1 =