nguyen son dong minh ko bk trinh bay ban nhé
47.(23 + 50 ) - 23.( 47 + 50)
= 47. 23 + 47.50 - 23.47 + 23.50
= ( 47.23 - 23.47 ) +47.50 + 23.50
= 0 + 47.50 + 23.50
= 50. ( 47 + 23 )
= 50.70
= 3500
hok tốt
thank you very much, Dương Vy Vy
47.(23+50)- 23.(47+50)
=47.73- 23.97
=3431-2231
=1200
Trả lời :................................................
3500.......................................
Hk tốt.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
k nhé Nguyễn Thị Minh Thư