271 - [(-43) + 271 - (-17)]

= 271 - [ 228 + 17 ]

= 271 - 245

= 26

   271-[(-43)+271-(-17)]

= 271 + 43 - 271 -17

= ( 271 - 271 ) + ( 43 - 17 )

=        0   +   26

=    26

-144-[29-(+144)-(+144)]

= - 144 - 29 + 144 + 144

= ( 144 - 144 ) + ( 144 - 29 )

=         0           +  115

= 115

a) Ta có: \(271-\left[\left(-43\right)+271-\left(-17\right)\right]\)

\(=271-\left(-43+271+17\right)\)

\(=271+43-271-17\)\(=43-17=26\)

b) Ta có: \(-144-\left[29-\left(+144\right)-\left(+144\right)\right]\)

\(=-144-\left[29-144-144\right]\)

\(=-144-29+144+144\)

\(=144-29=115\)

sai hết rồi phải bằng 115

=271+43-271-17

=(271-271)+(43-17)

=0+26

=26

  271-[(-43)+271-(-17)]

=271+43-271+17

=(271-271)+(43+17)

=      0      +    60

=           60

Tick nha!!! ^~^

 271-[(-43)+271-(-17)]

=271+43-271+17

=(271-271)+(43+17)

=0+60

=60

271 - [ ( -43 ) + 271 - ( -17 ) 

= 271 - [ -43 + 271 + 17 ]

= 271 + 43 - 271 - 17

= ( 271 - 271 ) + ( 43 - 17 )

= 0 + 26

= 26

= 271 + 43 - 271 - 17

= ( 271 - 271 ) + ( 43 -17 )

= 0 + 26

= 26

271+43-271-17

=(-271+271)+43-17

=0+26

=26

a )   159 − 524 − 59 − 424 ; = 159 − 524 − 59 + 424 = 159 − 59 − 524 − 424 = 100 − 100 = 0 b )   36 + 79 + 145 − 79 − 36 ; = 36 + 79 + 145 − 79 − 36 = 36 − 36 + 79 − 79 + 145 = 145 c )   334 − 117 + 234 + 42 + 117 ; = 334 − 117 − 234 + 42 + 117 = 334 − 234 − 117 − 117 + 42 = 100 + 42 = 142 d )   271 − − 43 + 271 − − 17 . = 271 − − 43 + 271 + 17 = 271 + 43 − 271 − 17 = 271 − 271 + 43 − 17 = 26

Kết quả là 26 nhé

271-[(-43)+271.(-17)]

=271-[(-43)+(-4607)]

=271-(-43)+(-4607)

=271+43+(-4607)

=314+(-4607)

=(-4293)

Chúc bn học tốt

a)10-(-12)+9+1

=10-10-(-12)

=0-12

=-12

a) 10-(12-(-9-1))

= 10 - ( 12 + 9+1)

=10-12-9-1

=-12

b) ( 39-29+43) - (43+38)

= 39-29+43-43-38

= 39-38+(43-43)-29

=1+0-29

= -28

f,(36+79)+(145-79-36)

=36+79+145-79-36

=(36-36)+(79-79)+145

=0+0+145

=145

g,10-[12-(-9-1)]

=10-(12+9+1)

=10-(12+10)

=10-12-10

=(10-10)-12

=0-12

=-12

h,(38-29+43)-(43+38)

=38-29+43-43-38

=(38-38)-29+(43-43)

=0-29+0

=-29

i,271-[(-43)+271-(-17)]

=271-(-43+271+17)

=271+43-271-17

=(271-271)+(43-17)

=0+26

=26

k,-144-[29-(+144)-(+144)]

=-144-(29-144-144)

=-144-29+144+144

=(-144+144)-29+144

=0-29+144

=-29+144

=115

f)=145

g)= -12

h)= -29

i)=26

k)=115

                 271-[(-43)+271-(-17)]

                =271-(-43)-271+17

                 =271+43+(-271)+17

                 =[271+(-271)]+[43+17]

                =0+60

                 =60

 k nhá

\(271-[(-43)+271-(-17)]\)

\(=271+43-271-17\)

\(=43-17=26\)

60 nha