(123x456-23x46)x(12x9-4x27)

=(123x456-23x46)x(108-108)

=(123x456-23x46)x0

=0

Chúc bạn học giỏi nha!!!

( 123 x 456 - 23 x 46) x ( 12 x 9 - 4 x 27)

=( 123 x 456 - 23 x 46) x (108 - 108)

= (123 x 456 -23 x 46 ) x 0 

= 0

(123*456-23*46)*(12*9-4*27)

=(56088-1058)*(108-108)

=55030*0

=0

225840 nha ban

1+1=2

k nha

tớ nè

k và kb nữa

cảm ơn nhiều

Bằng 2

= 2

k mk mk k lại

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1) a) \(35.34+35.58+65.75+65.45\)

\(=35\left(34+58\right)+65\left(75+45\right)\)

\(=35.92+65.120\)

\(=3220+7800=11020\)

b) \(39,8+60,2+21,8-100\)

\(=\left(39,8+60,2\right)-100+21,8\)

\(=100-100+21,8=0+21,8=21,8\)

c) \(36.28+64.49+36.82+41.64\)

\(=36\left(28+82\right)+64\left(49+41\right)\)

\(=36.110+64.90\)

\(=3960+5760\)\(=9720\)

\(1+1+2=4\)

tk mk nhé mk thứ 2 nè!!!

4 nha bạn

=4 

tk mk nha

=2 

k nha mk nhanh nhất

1 + 1 = 2

k nhé !

= 2 nhé !

10

Nhé

1 + 2 + 3 + 4 = 10

k mình nha

1+2+3+4=10

tịk mk di mk k lại

\(1+2+1+2=6\)

ai k mk mk k lại !

1 + 2 + 1 + 2

=  1 + ( 2 + 1 + 2 )

=  1  +      5

=      6

1+2+1+2=[1+2]+[1+2]

              =3+3

               =6

mình tk bạn rồi đúng 1 đấy 

500*3=1500

k mình nha các bạn

k mình nhé

nhanh tay lên

500x3=1500

k mk k lại