em hay viet 9 so thap phan be hon 1 ma moi so do co 1 chu so khac 0

cho so thap phan 30,72 . so nay thay doi the nao neu 0

a / xoa bo dau phay

b/ dich dau phay sang ben phai 1 chu so 

c/ dich dau phay sang ben trai 1 chu so

Cho mot so thap phan , doi dau phay cua so do sang ben phai mo chu so ta duoc so thu hai , doi dau phay cua so ban dau sang ben trai mot chu so ta duoc so thu ba ; cong ba so lai ta duoc ton bang 360,306 . Hay tim so thap phan ban dau ?

tim so thap phan A , biet neu dich chuyen dau phay cua so A sang ben trai mot hang ta duoc so B va sang ben phai mot hang ta duoc so C va A +B+C= 259,74

Ban Hoa viet ra giay mot so thap phan . Sau do Hoa dich dau phay sang ben phai mot chu so roi lay so moi do tru di so ban dau thi duoc ket qua la 94,5 . Hoi so Hoa viet la so nao ?

tim 1 so thap phan A biet neu dich dau phay cua so A sang ben trai mot hang thi ta duoc so B va sang ben phai mot hang thi ta duoc so C va A+B+C=259,74

Khi doi dau phay cua mot so thap phan sang ben phai mot chu so .thi so do tang len 8.1 don vi tim so thap phan ban dau

TIM SO THAP PHAN A ,BIET NEU DICH CHUYEN DAU PHAY CUA SO A SANG BEN TRAI MOT HANG DUOC SO B VA SANG BEN PHAI MAT SO HANG DUOC SO C -B = 171,468 

DAP SO

tim 3 so thap phan A,B va C co tong la 200,4921.Neu chuyen dau phay cua so A sang ben trai 2 chu so thi duoc so B, neu chuyen dau phay cua so A sang ben phai mot hang thi duoc so C.

Hieu hai so thap phan la 18,09 . Neu dich dau phay cua so thu nhat sang ben phai mot chu so ta duoc so thu hai .Tim so thu hai