34.(-84)+17.(-32)=17.2.(-84)+17.(-32)

=17.(-84.2)+17.(-32)

=17.(-168)+17.(-32)

=17.[(-168)+(-32)]=17.(-200)=-3400

34.(-84)+17.(-32)=(-2856)+(-544)

=-3400

chúc bạn học giỏi!

34(-84) + 17(-32)

= -2856 + (-544)

= -2856 - 544

= -3400

ủng hộ nha. tớ đang âm

34  x ( - 84 ) + 17 x ( - 32 )

=[ 34 + ( - 32 ) ] x [ ( - 84 ) + 17 ]

=2 x ( - 67 )

= - 134

mk  cx  ko  chắc lắm nha!  nếu  sai  thì thôi  hén

tk  mk nha ( nếu  đúng  nhé ! ) 

34(-84)+17(-32)

= 2. 17. (-84) + 17. (-32)

= 2. 17. (-84 + -32)

= 2. 17. (-116)

= 34. (-116)

= -3944

34.(-84)+17.(-32)

=17.(-188)+17.(-32)

=19.(-164-32)

=19.(-200)

=-3800

b, -215.54+430.23

=-215.54-215.46

=215.(-53-46)

=215.(-100)

=-21500

tính sai  nhưng cách đúng r bn ạ

a, -326 - (115-326)

= - 326 -115 + 326

= -115

b, 34.(-84)+17.(-32)

= 34.(-84)+17.2.(-16)

=34.(-84)+34.(-16)

=34.[(-84)+(-16)]

=34.(-100)

=-3400

=.= hk tốt!!

a) -326 - (115 - 326)

= -326 - 115 + 326

= (326 - 326) - 115

= 0 - 115

= -115

b) 34.(-84) + 17.(-32)

= 17 .2.(-84) + 17.(-32)

= 17.(-168) + 17.(-32)

= 17.(-168 - 32)

= 17.(-200)

= -3400

mik đang âm , ủng hộ nha

a) -326-(115-326)

=-326-115+326

=(-326+326)-115

=0-115

=-115

b) 34.(-84)+17.(-32)

=17.2.(-84)+17.(-32)

=17.(-168)+17.(-32)

=17.[(-168)+(-32)]

=17.(-6200)

=-105400

a)-115

b)-3400

=16x2x(-39) + 16x(-22)

= 16 x (-78) + 16 x (-22)

= 16 x ( -78 + (-22)

= 16 x (-100)

= -1600

\(17\times2\times\left(-84\right)+17\times\left(-22\right)\)

\(17\times\left(-168\right)+17\times\left(-22\right)\)

\(17\times\left(-168+\left(-22\right)\right)\)

\(17\times\left(-190\right)\)

-3230

ai làm nhanh tui k cho ạ, giúp vs đang cần gấp

-234-(123-234)

= -234-123+234

= 123

\(a,-234-\left(123-234\right)\)

\(=-234-123+234\)

\(=-123\)

\(b,-24.33+40.24+13.30+13.46\)

\(=24\left(-33+40\right)+13\left(30+46\right)\)

\(=24.13+13.76\)

\(=13.\left(24+76\right)\)

\(=13.100=1300\)

\(c,34.\left(-84\right)+17.\left(-32\right)\)

\(=17.2.\left(-84\right)+17.\left(-32\right)\)

\(=17.\left(-168-32\right)\)

\(=17.\left(-200\right)\)

\(=-3400\)

a) 34.(-84) + 17.(-32)

= 17.2.(-84) + 17 .(-32)

= 17. (-168) + 17.(-32)

= 17.(-168 - 32)

= 17. (-200)

= -3400

b) 4524 + (-864) + 9999 + (-36) + ( -8999)

= 4524 - 864 + 9999 - 36 - 8999

= 3660 + (9999 - 8999) - 36

= 3660 + 1000 - 36

= 4624

c) 1000 + (-137) + 263 + (-572) + (-291)

= 1000 - 137 + 263 - 572 - 291

= 263

d) (-329) + 15 + (-101) + 440 + (-25)

= 15 - 329 - 101 + 440 - 25

= 0

\(a.\)

\(34.\left(-84\right)+17.\left(-32\right)\)

\(=17.\left(-168\right)+17.\left(-32\right)\)

\(=17.\left(-168+-32\right)\)

\(=17.\left(-200\right)\)

\(=-3400\)

\(b.\)

\(4524+\left(-864\right)+9999+\left(-36\right)+\left(-8999\right)\)

\(=\left[4524+\left(-864\right)\right]+\left[9999+\left(-8999\right)\right]+\left(-36\right)\)

\(=3660+1000+\left(-36\right)\)

\(=4624\)

\(c.\)

\(1000+\left(-137\right)+263+\left(-572\right)+\left(-291\right)\)

\(=\left[263+\left(-572\right)+\left(-291\right)\right]+1000+\left(-137\right)\)

\(=\left(-600\right)+1000+\left(-137\right)\)

\(=400+\left(-137\right)\)

\(=263\)

\(d.\)

\(\left(-329\right)+15+\left(-101\right)+440+\left(-25\right)\)

\(=\left[15+\left(-25\right)\right]+\left[440+\left(-101\right)+\left(-329\right)\right]\)

\(=\left(-10\right)+10\)

\(=0\)