Question

Efectúe las siguientes operaciones:
a. 31 + 8 – 25 + 4 – 13 =
b. 15 + (21 – 20) – 13 =
c. 50 – {7 – (-12 + 6) – 15 - 20} – 4 =
d. -15 – (12 – 10) + 13 – {3 – (- 14 + 18)} – 4 =
e. 5 – [21 + 17 . (-3) – 11 . (-7)] + (-2) . (6) =
f. -8 – [-12 + 5 . (-3) – (-10 ÷ 5)] + (-12 ÷ 4) =

Answer 1

Respuesta:

Explicación paso a paso:

a. 31 + 8 – 25 + 4 – 13 = 5

b. 15 + (21 – 20) – 13 = 3

c. 50 – {7 – (-12 + 6) – 15 - 20} – 4 = 68

d. -15 – (12 – 10) + 13 – {3 – (- 14 + 18)} – 4 = -7

e. 5 – [21 + 17 . (-3) – 11 . (-7)] + (-2) . (6) =  -54

f. -8 – [-12 + 5 . (-3) – (-10 ÷ 5)] + (-12 ÷ 4) = 14