bằng 2550

Bằng 2550 ík

bằng 2550 nha 

tích cho cái đi

27 x 75 + 25 x 27 -150 = 27x (75 +25 ) - 150 = 27 X 100 -150 = 270 - 150= 2550

27 x 75 + 25 x 27 - 150

= 27 x ( 75 + 25) -150

= 27 x 100 -150

= 2700 - 150 

= 2550

k nha!

                                 27 . 75 + 25 .27 - 150 

= 27 . ( 25 + 75 ) - 150

= 27 . 100  -150

= 2700 - 150

= 2550

27 x ( 75 + 25 ) - 150 = 2550

12 : { 400 : [ 500 - ( 125 + 25 x 7 ) ] }

a) 27.75+25.27-150

= 27.(75+25)-150

= 27.100-150

= 2550

b) 12:{390:[500-(125+75.7)]}

= 12:{390:(500-25.26)}

= 12:{390:[25.(20-26)]}

= 12:(390:(-150)]}

= 12 : \(\dfrac{-13}{5}\)

= \(\dfrac{-60}{13}\)

a)27.75+25.27-150=27.(75+25)-150=27.100-150=2700-150=26850

b)\(12:\left\{390:\left[500-\left(25.5+25.3.7\right)\right]\right\}\)

\(=12:\left\{390:\left[25.20-25.26\right]\right\}\)

\(=12:\left\{3.10.13:\left[-25.6\right]\right\}\)

\(=12:\left(\dfrac{-13}{5}\right)=-12.\dfrac{5}{13}=\dfrac{-60}{13}\)

a,27.75+25.27-150
=27(75+25)-150
=27.100-150
=2700-150
=2550
b)12:{390:[500-(125+75.7)]}
=12:{390:[500-650]}
=12:{390:(-150)}
=12:(-2.6)
=-\(-4\dfrac{8}{13}\)

25.(75+25)-100

=25.100-100

=2500-100

=2400

= 25. (75+27) - 150

= 25.102 - 150

= 2550 -150

=240

  27 x 75 + 25 x 27 -150

=27 x (75+25) - 150

= 2700-150

= 2550

K cho Mk nha!!

27 x 75 + 25 x 27 - 150

= 27 x [ 75 + 25 ] - 150

 = 2700 - 150

= 2550

27 x 75 + 25 x 27 - 150

= 27 x ( 75 + 25 ) -150

=27 x 100 - 150 

=2700 - 150

= 2550

= 27 x [ 75 \(+\)25 ] - 150

= 27 x 100 - 150

= 2700 - 150

= 2550

27 x 75 + 25 x 27 - 150

= 2025 + 675 - 150

= 2700 - 150

= 2550

= 27*(75+25)-150

=27*100-150

=2700-150

=2550
 

27 . 75 + 25 . 27 - 150

= 27 . ( 75 + 25 ) - 150

= 27 . 100 - 150

= 2700 - 150

= 2550

ý lộn sory nhá 27 mà mk làm 25

27.75+25.27-150

=27.( 75 + 25 ) -150

=27.100 - 150

=2700-150

=2550

#Chúc bạn học tốt.Tick cho mk nhé!

a)39 . 213 + 87 . 39

=39 . (213 + 87 )

=39 .      300

=      11700

b)27 . 75 + 25 . 27 - 150

=27 . (75 + 25) - 150

=27 .     100    - 150

=     2700        - 150

=           2550

a) Ta có: \(39.213+87.39=39.\left(213+87\right)\)

                                                 \(=39.300\)

                                                 \(=11700\)

b) Ta có: \(27.75+25.27-150=27.\left(75+25\right)-150\)

                                                              \(=27.100-150\)

                                                              \(=2700-150\)

                                                              \(=2550\)

a) 39 . 213 + 87 .39

=39( 213+87)

=39 . 300

=39.3.100

=117 . 100

=11700

b) 27 . 75 + 25 . 27 -150

=27(75 + 25 ) - 150

=27 . 100 - 150

=2700 - 150 

=2550