Question

Ayuda por favor:
Efectuar
a) (-17)+(+4)-(-3)
b) (-7)-(-9)+(+15)-(+34)
c) (-2) • [(+3)+(-7)-(-8)]
d) -5 • (2+7-3+5-9-1)

Answer 1

Respuesta:

a) (-17)+(+4)-(-3)

-17 + 4 + 3

-13 + 3

-10

b) (-7)-(-9)+(+15)-(+34)

-7 + 9 + 15 - 34

2 + 15 -34

17 - 34

-17

c) (-2) • [(+3)+(-7)-(-8)]

(-2)•[ +3 - 7 + 8 ]

(-2)•[ -4 + 8]

(-2)•[4]

- 8

d) -5 • (2+7-3+5-9-1)

-5 • ( 9 + 2 - 10 )

-5 • ( 11 - 10 )

-5 • ( 1)

-5