a) (-370) + 114 + 236 + 370

= (-370 + 370) + 114 + 236

= 114 + 236

= 350

b, (-120) + (-130) + 360 + (-110)

= (-120 - 130 - 110) + 360

= -360 + 360

= 0

c, 25 + 37 - 48 - 25 - 37

= (25 - 25) + (37 - 37) - 48

= -48

d, (-125) - (19 - 125)

= -125 - 19 + 125

= (-125 + 125) - 19

= -19

e, 100 - [ 25 - (-19 - 11)]

= 100 - (25 + 19 + 11)

= 100 - (25 + 30)

= 100 - 55

= 45

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

= 271 - (-43 + 271 + 17)

= 271 + 43 - 271 + 17

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

= 60

g, 35 . (-29) + (-29) . 65

= (-29)(35 + 65)

= (-29) . 100

= -2900

h, 2² . (-8) . (-25) . 125 . 18

= 4 . (-8) . (-25) . 125 . 18

= [4 . (-25)] . [(-8) . 125] . 18

= -100 . (-1000) . 18

= 100000 . 18

= 1800000

i, 48 : (-6 . 4 + 8)

= 48 : (-24 + 8)

= 48 : (-16)

= -3

j, -3 . 7 - 4 . (-5) + 1

= -21 + 20 + 1

= 0

k, 16 + (102 -7.6) - ( 94 . 17 - 27 . 94)

= 16 + (102 - 42) - 94(17 - 27)

= 16 + 102 - 42 - 94 . (-10)

= 16 + 102 - 42 + 940

= 16 + 60 + 940

= 16 + (60 + 940)

= 16 + 1000

= 1016

Chúc bn học tốt (Đây là cách của mình, mình nghĩ còn nhiều cách nữa, bạn có thể tham khảo bài mình)

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

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

= 115 + ( 66 - 36 )

= 115 + 30

= 145

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

= 10 - [ 12 - ( - 10 ) ]

= 10 - 22

= - 12

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

= ( 9 + 43 ) - 81

= 52 - 81 

= - 29

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

= 271 - [ 314 - ( - 17 ) ]

= 271 - 331

= - 60

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

= - 144 - [ ( - 115 ) - ( + 144 ) ]

= - 144 - ( - 259 )

= 115

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

=115+30

=145

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

=10-22

=-12  

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

=52-81

=(-29)

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

=271-297

=(-26)

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

=-144-(-259)

=115 

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

= 36 + 79 + 145 - 79 - 36

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

= 0 + 0 + 145

= 145

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

= 10 - [12 + 9 + 1]

= 10 - 12 - 9 - 1

= 10 - 12 - (9 + 1)

= 10 - 12 - 10

= (10 - 10) - 12

= 0 - 12

= -12

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

= 38 - 29 + 43 - 43 - 38

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

= 0 + 0 - 29

= -29

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

= 271 - [43 + 271 + 17]

= 271 - 43 - 271 - 17

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

= 0 - 60

= -60

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

= -144 - [29 - 144 - 144]

= -144 - 29 + 144 + 144

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

= 0 + 115

= 115

a: \(\left(24-234\right)+\left(234-24-77\right)\)

\(=24-234+234-24-77\)

\(=\left(24-24\right)+\left(234-234\right)-77\)

=0+0-77

=-77

b: \(\left(13-135+49\right)-\left(13+49\right)\)

\(=13-135+49-13-49\)

\(=\left(13-13\right)+\left(49-49\right)-135\)

=0+0-135

=-135

c: \(159-524-\left(59-424\right)\)

\(=159-524-59+424\)

\(=\left(159-59\right)-\left(524-424\right)\)

=100-100

=0

d: \(\left(36+79\right)+\left(145-79-36\right)\)

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

\(=\left(36-36\right)+\left(79-79\right)+145\)

=0+0+145

=145

e: \(334-\left(117+234\right)+\left(42+117\right)\)

\(=334-117-234+42+117\)

\(=\left(334-234\right)+\left(117-117\right)+42\)

=100+0+42

=142

f: \(271-\left[\left(-43\right)+271-\left(-17\right)\right]\)

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

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

=0+26

=26

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

chia từng câu ra rồi mình giải cho nhé , nhiều câu quá

nhiều ai mà lm đc

cậu chia ra,cái này quá đơn giản nhưng dài quá mik hơi lười

a) (-37)+14+26+37 = ( -37 + 37) + ( 14 + 26) = 40
b) (-24)+6+10+24 = ( - 24 + 24) + ( 6 + 10) = 16
c) 15+23+9-25)+(-33) = (15 - 25) + ( 23 - 33) + 9

= - 10 - 10 + 9

= - 11
d) 60+33+(-50)+(-33) = ( 60 -50) + ( 33 - 33)

= 10
e) (-16)+(-209)+(-14)+209 = ( - 16 - 14) + ( - 209 + 209)

= - 30
g) (-12)+(-13)+36+(-11)= ( - 11 -12 - 13 ) + 36

= - 36 + 36 = 0
h) -16+24+16-34 = ( - 16 + 16)+(24 - 34) = - 10
r) 25+37-48-25-37 = (25 - 25)+(37 - 37) - 48 = - 48
u) 2575+37-2576-29 = ( 2575 - 2576) + ( 37 - 29)

= - 1 + 8 = 7
i) 34+35+36+37-14-15-16-17 = ( 34 - 14 )+(35 - 15)+(36-16)+ (37 - 17)

= 80
2 . Bỏ ngoặc rồi tính
a)-7264+(1543+7264) = - 7264 + 1543 + 7264

= 1543
b) (144-97)-144 = 144 - 97 - 144 = - 97
c) (-145)-(18-145) = - 145 - 18 + 145 = - 18
d) 11+(-11+27) = 11 - 11 + 27 = 27
e) (27+514)-(486-73) = 27 + 514 - 486 + 73

= 128
g) (36+79)+(145-79-66) = 36 + 79 + 145 - 79 - 66

= 115
h) 10-[12-(-9-1) = 10 - ( 12 + 9 + 1)

= 10 - 22

= - 12
r) (-28-29+43)-(43+38) = - 28 - 29 + 43 - 43 - 38

= - 95
u ) 271 - [(-43)+271-(-17)] = 271 + 43 - 271 - 17 = 26
i ) -144-[29-(+144)-(+144) = - 144 - 29 - 144 + 144 = -173

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