Question

12) Calcule as somas algébricas:
a) (-3) + (-4) - (+5) =
b) (+8) - (+3 + (-6) =
c) -(-3) - (-4) - (+1) =
d) (-2) + (- 12) + (+9) =
e) -12 + 20 - 8 + 9 =
f) - 4 - 3 - 16 + 25 - 7 =
g) 7-35 + 28 - 45 - 6 =
h) -400 + 625 - (-301 - 526) + (615 - 810) =​

Answer 1

respostas:

a) -12

b) -17

c) 6

d) -5

e) 9

f) -5

g) -51

h) 857