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

Resposta:

a)-12

b)-1

c)6

d)-5

e)9

f)-5

g)-51

h)605

Answer 2

a) -2
b) 11
c) 6
d) -5
e) 9
f) -5
g) -51
h) 1657