Question

4) Calcula:
a) -6 + (-5 - 1 + 3) · (-2) + [ -9 : (-3) ] =
b) -30 : (10 - 6 : 2 - 1) - [ -4 - 2 · (-5) ] =
c) 5 - [ 7 - 2 - ( 1 - 9 ) - 3 + 12 ] + 4 · ( - 3 ) =
d) 1 - ( - 3 + 6 + 1 ) - ( - 2 ) · [ 4 - ( 6 - 3 + 1 ) - 2 ] =
e) 6 - [ 3- ( 8 - 5 ) + 2 ] : ( - 2 )

Answer 1

Respuesta:

a. 3

b. -12

c. -29

d. -7

e. 7

Explicación paso a paso:

a) -6 + (-5 - 1 + 3) · (-2) + [ -9 : (-3) ] = -6 -3 .(-2 )+ 3 = -6 + 6 + 3 = 3

b) -30 : (10 - 6 : 2 - 1) - [ -4 - 2 · (-5) ] = -30 : (10 -3 -1) - [ -4 + 10 ] = -30 : 6 - 6 = -6 -6 = -12

c) 5 - [ 7 -2 - ( 1 -9 ) -3 + 12 ] + 4 · ( -3 ) = 5 - [ 7 -2 - ( 1 -9 ) -3 + 12 ] -12 = 5 - [ 7 -2 - (-8 ) -3 + 12 ] -12 = 5 - [ 7 -2 +8  -3 + 12 ] -12 = 5 -22 -12 = -29

d) 1 - (-3 + 6 + 1) - (-2) · [4 - (6 -3 + 1) -2] = 1 - (4) - (-2) · [4 - (4) -2] = 1 -4 - (-2) · [4 -4 -2] = 1 -4 - (-2) · [-2] = 1 -4 -4 = -7

e) 6 - [3- (8 -5) + 2] : (-2) = 6 - [3 -3 + 2] : (-2) = 6 - [2] : (-2) = 6 + 1 = 7