Question

3. Resolver los siguientes cálculos combinados:
a) (8 . 7 + 5 . (-8)) : (-4) =
b) 30 : ((-12 + 9) – (3 • 3 – 12 : 3) + 2) =
c) 27 + 3 . 5 - 16=
d) 3 . 9 + (6 + 5 - 3) - 12 : 4=
e) 8-24: (-1-5)+ (-20:4+7). (-7) =
f) -6. (7-12)+15. (1-20:4)- (-13) =
g) 12. (-3): (-4)+ (-5+7.2). (-3)+9 =
h) -10+ (9.3-6.5).6 + (-15+6) =
i) (14-8.3): (9-11)+ 100: (-8-2) =
con los pasos plis

Answer 1

Respuesta:

a) (8×7+5×(-8)) ÷ (-4)=

(8×7-5×8) ÷ (-4)=

8 (7-5) ÷ (-4)=

8×2 ÷ (-4)= -4

b) 30 ÷ ((12+9) - (3×3-12÷3)+2)=

30 ÷ ((-3) - (9-4) +2)=

30 ÷ (-3-5+2)=

30 ÷ (-6)= -5

c) 27+3×5-16=

27+15-16=

42-16= 26

d) 3 × 9 + (6 + 5 - 3) - 12 ÷ 4=

27+8-3=32

e) 8-24÷ (-1-5)+ (-20÷4+7)× (-7) =

8-24: (-6)+ (-5+7). (-7) =

8+4+2×(-7)=

8+4-14= -2

f) -6× (7-12)+15× (1-20÷4)- (-13) =

-6× (-5) +15 (1-5) +13=

30+15× (-4) +13=

30-60+13= -17

g) 12× (-3)÷ (-4)+ (-5+7×2)× (-3)+9 =

9+(-5+14)×(-3)+9=

9+9×(-3)+9=

9-9×3+9=

9 (2-3)=

9× (-1)= -9

h) -10+ (9×3-6×5)×6 + (-15+6) =

-10+(27-30)×6×(-9)=

10-3×6× (-9)=

-10+162= 152

i) (14-8×3)÷ (9-11)+ 100÷ (-8-2) =

(14-24) ÷ (-2) -100÷ (-10)=

-10÷ (-2) -10=

5-10= -5

Explicación paso a paso:

Espero haberte ayudado<3