50.(10+90)+(10.20)+50
=50.100+200+50
=5000+250
=5250 nha bn
50 .(10 + 90) + (10.20) + 50
= (50 x 100) + 200 + 50
= 5000 + 250
= 5250
50.(10+90)+(10.20)+50
50.(100+ 200+50)
50x350
=17500
50 .﴾10 + 90﴿ + ﴾10.20﴿ + 50 = ﴾50 x 100﴿ + 200 + 50 = 5000 + 250 = 5250
50 x ( 10 + 90 ) + ( 10 x 20 ) + 50
= ( 50 x 100 ) + 200 + 50
= 5000 + 250
= 5250
50 x ( 10 + 90 ) + ( 10 x 20 ) + 50
= ( 50 x 100 ) + 200 + 50
= 5000 + 250
= 5250
