Question

plisssssa) 6 + [5 + (7 + 2)] =
b) 8 + [4 – (3 + 5)] =
c) 10 – [6 + (2 + 7)] =
d) 15 – [2 – (6 – 10)] =
e) 15 – [10 – (8 + 4)] =
f) 12 – [7 – (2 – 10)] =
g) (–6 ) + [5 + (2 – 12)] =
h) (–7) – [3 – (4 – 9)] =

Answer 1

Respuesta:

a) 20

b) 4

c) -5

d) 9

e) 17

f) -3

g) -11

h) -15

Explicación paso a paso:

a) 6 + [ 5 + ( 7 + 2 ) ] = 20

= 6 + [ 5 + 9 ]

= 6 + 14

b) 8 + [ 4 - ( 3 + 5 ) ] = 4

= 8 + [ 4 - 8 ]

= 8 - 4

c) 10 - [ 6 + ( 2 +7 ) ] = -5

= 10 - [ 6 + 9 ]

= 10 - 15

d) 15 - [ 2 - ( 6 - 10 ) ] = 9

= 15 - [ 2 + 4 ]

= 15 - 6

e) 15 - [ 10 - ( 8 + 4 ) ] = 17

= 15 - [ 10 - 12 ]

= 15 + 2

f) 12 - [ 7 - ( 2 - 10 ) ] = -3

= 12 - [ 7 + 8 ]

= 12 - 15

g) ( - 6 ) + [ 5 + ( 2 - 12 ) ] = -11

= -6 + [ 5 - 10 ]

= -6 - 5

h) ( - 7 ) - [ 3 - ( 4 - 9 ) ] = -15

= -7 - [ 3 + 5 ]

= -7 - 8