\(-23\cdot63+23\cdot21-58\cdot23\)

\(=23\left(-63+21-58\right)\)

\(=23\cdot\left(-100\right)\)

\(=-2300\)

Trả lời:

-23 . 63 + 23 . 21 - 58 . 23

= 23 . (-63 + 21 - 58)

= 23 . (-100)

= -2300

Hok tốt!

Vuong Dong Yet

Trả lời:

-23 . 63 + 23 . 21 - 58 . 23

= 23 . (-63 + 21 - 58)

= 23 . (-100)

= -2300

Hok tốt!

Minh

-23*63+23*21-58*23\(=23.\left(-63+21-58\right)=23.\left(-100\right)=-2300\)

HTDT

-23 x 63 + 23 x 21 - 58 x 23

= (-23) x ( 63 + 58 ) - 21

=(-23) x        121      - 21

= (-23) x            100

= 77

Hk tốt

k nhé

Trần Châu Tuấn Kiệt là nick của tớ mà quên tên và mk

-23 . 63  + 23 . 21 - 58 . 23

= 23 . ( -63 ) + 23 . 21 - 58 . 23

= 23 . [ ( -63 ) + 21 - 58 ]

= 23 . ( -100 )

=-2300

AI TRẢ LỜI ĐC MÌNH K CHO

Đặt 23 chung ta đc : \(23\left(-63+21-58\right)\)=\(23\cdot-100\)=-2300

-23.63+23.21-58.23

=23(-63+21-58)

=23.(-100)

=-23000

-23.63+23.21-58.23

=23.(-63)+23.21-58.23

=23.(21-63-58)

=23.(-100)

=-2300

a) 100 + (+430) + 2145 + (-530)

= 100 + [ (+430) + (-530) ] + 2145

= 100 + (-100) +2145

= 0 + 2145 = 2145

b) (-12) . 15 . 8 . (-4)

= [ (-12) . 8 ] . [ 15. (-4)]

= (-96) . (-60) = 5760

c) (+12) . 13 + 13 . (-22)

= 13. [ (+12) + (-22) ]

= 13. (-10) = -130

d) { [14 : (-2)] + 7 } : 2012

= { [ (-7) + 7 } : 2012

= 0 : 2012 = 0

e) -23 . 63 + 23 . 21 - 58 . 23

= 23 . -63 + 23 . 21 - 58.23

= 23. ( -63 + 21 - 58 )

= 23 . -100 = -2300

Hok tốt !

a) 100 + (+430) + 2145 + (-530)

=100+[430+(-530)]+2145

=100+(-100)+2145

=0+2145

=2145

b) (-12) . 15 . 8 . (-4)

=(-12.8).[15.(-4)]

=-90.(-60)

=5760

c) (+12) . 13 + 13 . (-22)

=13.[12+(-22)]

=13.(-10)

=-130

d) { [14 : (-2)] + 7 } : 2012

={-7+7}:2012

=0:2012

=0

e) -23 . 63 + 23 . 21 - 58 . 23

=23.(-63)+23.21-58.23

=23.(-63+21-58)

=23.(-100)

=-2300

(-23).63 + 23.21 - 58.23

= 23.(-63 + 21 - 58)

= 23 . (-100)

= -2300

( - 23 ) . 63 + 23 . 21 - 58 . 23

= 23 . ( -  63 + 21 - 58 )

= 23 . ( - 100 )

= - 2300

( 23 ) . 63 + 32 . 21 - 58 . 23

= 23 . ( - 63 + 21 - 58 )

23 . ( -100 )

= - 2300

\(1500-\left\{5^3\cdot2^3-11\left[7^2-5\cdot2^3+8\left(11^2-121\right)\right]\right\}\\ =1500-\left[125\cdot8-11\left(49-5\cdot8+8\cdot0\right)\right]\\ =1500-\left[125\cdot8-11\left(49-40+0\right)\right]\\ =1500-\left(125\cdot8-11\cdot9\right)\\ =1500-\left(1000-99\right)\\ =1500-901\\ =599\)

sau số 11 có đấu j bạn

sau số 11 là x bạn nhé   Nguyễn Long Thành

27/23 + 5/21 - 4/23 + 6/21 + 1/2

=( 27/23 - 4/23 ) + ( 5/21 + 6/21 ) + 1/2

= 23/23 + 11/21 + 1/2

= 1 + 11/21 + 1/2

= 32/21 + 1/2 

= 85/42

\(\frac{27}{23}+\frac{5}{21}-\frac{4}{23}+\frac{6}{21}+\frac{1}{2}\)

\(=(\frac{27}{23}-\frac{4}{23})+(\frac{5}{21}+\frac{6}{21})+\frac{1}{2}\)

\(=1+\frac{11}{21}+\frac{1}{2}\)

\(=\frac{32}{21}+\frac{1}{2}=\frac{85}{42}\)

Chúc bạn học tốt

\(\frac{27}{23}+\frac{5}{21}-\frac{4}{23}+\frac{6}{21}+\frac{1}{2}\)

\(=\left(\frac{27}{23}-\frac{4}{23}\right)+\left(\frac{5}{21}+\frac{6}{21}\right)+\frac{1}{2}\)

\(=\frac{23}{23}+\frac{11}{21}+\frac{1}{2}\)

\(=1+\frac{11}{21}+\frac{1}{2}\)

\(=\frac{21}{21}+\frac{11}{21}+\frac{1}{2}\)

\(=\frac{32}{21}+\frac{1}{2}=\frac{64}{42}+\frac{21}{42}=\frac{85}{42}\)