Question

51. Realiza las siguientes operaciones.
a)-3-(-2). 4+ 20:(-4)+(-1). [28+3.(-6)]
b)[-3-(-2)] - [4 + 20] :(-4)+(-1). 28+3.(-6)
c) 24:(-4): 2-(-5).(-10): 2 - [6 - (-4).(-9)]
d)(-7 -3.2) - [26-(-3). (-12)] - (-1).(-8)
e)[(-49): 7-(-6)] – [50 -(-6).(-8)] - [-3-(-7)]
f)33:(-3). 2+(-7).(-8): 2-[13-(-9).(-5)]​

Answer 1

Se trata de Operaciones Aritméticas Básicas combinadas.

a) – 3 – (–2). 4 + 20 ÷ ( – 4) + (– 1)[28 + (3)( – 6)]

(– 3 + 2)(4) + 20 ÷ (– 4 – 1)[(28 – 18)]

(– 1)(4) + 20 ÷ (– 5)(10)

– 4 + 20 ÷ (– 50)

16 ÷ – 50

Resultado = – 0,32

b) [ – 3 – (– 2)] – [4 + 20] ÷ ( –4) + (– 1)(28) + (3)(– 6)

(– 3 + 2) – (24) ÷ (– 4) + (– 28) + (– 18)

(– 1 – 24) ÷ (– 4 – 28 – 18)

(– 25) ÷ (– 50)

Resultado = 0,5

c) 24 ÷ (– 4) ÷ 2 – (– 5)(– 10) ÷ 2 – [6 – (– 4)(– 9)]

6 ÷ 2 – (– 50) ÷ 2 – [6 – (36)]

6 ÷ (2 + 50) ÷ 2 – (6 – 36)

6 ÷ (52) ÷ (2 + 30)

6 ÷ (52) ÷ (32)

6 ÷ (52)(32)

6 ÷ 1.664

Resultado = 0,003606

d) [(– 7 – (3)(2)] – [26 – (– 3)(– 12)] – (– 1)(– 8)

[(– 7 – (6)] – [26 – (– 36)] – (8)

(– 7 – 6) – (26 + 36) – (8)

(– 13) – (62 – 8)

– 13 – (54)

Resultado = – 67

e)  [(– 49) ÷ 7 – (– 6)] – [50 – (– 6)(– 8)] – [– 3 – (– 7)]

[(– 7 – (– 6)] – (50 – 48) – (– 3 + 7)

(– 7 + 6) – (2) – (4)

(– 1) – (2) – (4)

– 1 – 2 – 4

Resultado = – 7

f) 33 ÷ (– 3)(2) + (– 7)(– 8) ÷ 2 – [13 – (– 9)(– 5)]

33 ÷ (– 6) + (56) ÷ 2 – [13 – (45)]

33 ÷ (– 6) + (56) ÷ 2 – (– 32)

33 ÷ (– 6) + (56) ÷ 2 + 32

33 ÷ 50 ÷ 34

33 ÷ (50)(34)

33 ÷ 1.700

Resultado = 0,01941