Question

6 + - 7 – (– 8) + 4 – 2 =
b) 16 – 21 + 18 – 8 =
c) 108 + – 200 + 9 – 42 =
d) 46 – {38 – (– 2) + – 9 + (42 – 18 + –15) – (–7)} =
e) 30 ÷ ((–12 + 9) – (3 • 3 – 12 ÷ 3) + 2) =
f) 45 ÷ {–2 + 12 ÷ (-7 + 3) + 12 – [ (–24) ÷ ( (–3) • 5 + 7) ] + 5} =
g) (8 • 7 + 5 • (–8) ) ÷ (–4) =
Porfavor ayuda

Answer 1

Respuesta:6 + - 7 – (– 8) + 4 – 2 =9

b) 16 – 21 + 18 – 8 =5

c) 108 + – 200 + 9 – 42 =-41

d) 46 – {38 – (– 2) + – 9 + (42 – 18 + –15) – (–7)} =-8

e) 30 ÷ ((–12 + 9) – (3 • 3 – 12 ÷ 3) + 2) =7

f) 45 ÷ {–2 + 12 ÷ (-7 + 3) + 12 – [ (–24) ÷ ( (–3) • 5 + 7) ] + 5}=0,20926

g) (8 • 7 + 5 • (–8) ) ÷ (–4) =66

Explicación paso a paso:

A 6+(-7)-(-8)+4-2

6-7+8+4-2

(6+8+4) + (-7-2)

+18-9

9

B 16-21+18-8

(-21-8)+(16+18

-29+34

=5

C 108+(-200)+9-42=

108-200+9-42

(108+9) +(-200-42)

117-158

=41

D 46-{38-(-2)+(-9)+(42-18+(-15)-(-7)

46-{38+2-9+(42-8-15)+7}

46-{38+2-9+16+7}

46-54

-8

E 30:(-12+9)-(3×3-12:3)+2

30:-3-(9-4)+2

10-(+5)+2

10-5+2

7

F 45:{-2+12:(-7+3)+12-[(-24):(-3)×5+7]+5}

45:{-2+12:-4+12-[-23:-38]+5}

45:{-2-3+12-1,583+5

45:{9,417}

0,20926

G (8×7+5×(-8):(-4)

56-40:(-4)

56+10

66