Tim 2 so thap phan co tong la 21,74.Biet neu doi dau phay so thu nhat sang trai 1 hang , doi dau phay so thu hai sang phai 1 hang thi duoc tong moi la 194,234
Tim 2 so thap phan co tong 8,72.Biet neu doi dau phay so thu hai sang trai 1 hang thi duoc so moi kem so thu nhat 0,987 don vi
tim hai so thap phan co tong la 26,54 biet neu doi dau phay so thu nhat sang phai 2 hang ta duoc so moi va biet hieu cua so moi va so thu hai la 1118.8
Tim 2 so thap phan biet tong la 14 va neu doi dau phay so thu hai sang phai 2 hang thi duoc tong moi la 122,27
co mot so thap phan , neu doi dau phay cua so do sang phai 2 chu so ta duoc so thu 2 , doi dau phay sang trai 1 chu so ta duoc so thu 3 . tong 3 so la 323,52 . tim so thap phan ban dau
tong cua hai so thap phan 80,01. Neu dich dau phay cua so thu nhat sang ben trai 1 hang roi cong voi so thu hai thi duoc tong moi la 19,233.Tim hieu cua hai so do. giai ro ra nhe ^.^
Tim mot so thap phan ,biet neu chuyen dau phay sang phai 1 hang roi sang trai 2 hang thi duoc 3 so co tong la 247,725
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.
tim so thap phan A ,biet khi roi dau phay cua so thap phan A sang ben phai 1 chu so ta duoc so thap phan B ,roi dau phay cua so thap phan A sang trai 1 hang ta duoc so thap phan C .Tong cua 3 so A,B,C la 223,887