x - 100 = 123 - 123

x - 100 = 0

x         = 0 + 100

x         = 100

x-100=123-123

x-100=0

x=100+0

x=100

x-100=123-123

x-100=0

x=0+100

x=100

k nha

(123 + 123 + 224) x 10 * 100 : 10000 = 47

(123+123+224)x10*100:10000=47

\(a,100.123-123.100\)

\(=100.\left(123-123\right)\)

\(=100.0\)

\(=0\)

\(b,10.30+70.10\)

\(=10.\left(30+70\right)\)

\(=10.100\)

\(=1000\)

a) 100 x 123 - 123 x 100

= 100 x ( 123 - 123 )

= 100 x 0

=100

b) 10 x 30 + 70 x 10

= 10 x ( 30 + 70)

= 10 x 10

= 100

sorry, dap so cua cau a là 0, mk đánh nhầm số

=(100x100)+123

=10000+123

=10123

100 x 100 + 123 =

= 10000 + 123

= 10123

100 x 100 + 123

= 10000 + 123

= 10123

Chú bạn học thật giỏi nha ! ! !

là 10123

100*100+123=10123

ai k minh minh k lai

100 * 100 + 123 = 10000 + 123 = 10123

Ai k mk mk k lại 

123 x 100 : 100

= 12300 : 100

= 123

k mk nha

123.100:100

=123.1

=123

k mik
 thanks

\(123x100:100=12300:100=123\)

ket qua bang 12400

số đó là

12300+100=12400

ai k mìn

mình k laijc ho

123 x 100 + 100

= 12300 + 100

= 12400

\(a,123\times54+27\times123-12\times123+123\times31\)

\(=123\times\left(54+27-12+31\right)\)

\(=123\times100\)

\(=12300\)

\(b,\dfrac{121}{27}\times\dfrac{54}{11}< n< \dfrac{100}{21}:\dfrac{25}{126}\)

\(22< n< \dfrac{100}{21}\times\dfrac{126}{25}\)

\(22< n< 24\)

Vì \(23>22\) và \(23< 24\) nên \(n=23\)

a, 123x(54+27-12+31)

=123x100

=12300

a123x54+27x123-12x123+123x31

=123:54+27:123-12:123+123:31

=6642+27:123-12:123+123:31

=6642+3321-12:123+123:31

=6642+3321-1476+123:31

=6642+3321-1476+3813

=12300

b,121/27x54/11<n>100/21:25/126

=22<n>24

n=23

123 x 100 = 12300

1 x 100 = 100

k mik nha TRANHOANGHAI

bài giải

123 x 100 = 12300

1 x 100 = 100

hi

12300

100