tim hai so co 2 chu so biet rang tong cua hai so do la 98 neu gep so lon vao ben trai va ben phai cua so be deu duoc cac so co 4 chu so ma hieu cua chung bang 1386 tim hai so do
tim hai so co tong la 32 .neu lay so lon ghep vao ben phai so be ta duoc mot so co 4 chu so.neu ghep so lon vao ben trai so be ta
co tong cua hai so vua ghep la 1884
tong hai so la so lon nhat co hai chu so tim hieu hai so do biet neu xoa chu so 0 o ben phai so lon ta duoc so be
tim tong cua 2 so biet hieu cua 2 so dola 82 va neu viet them mot chu so nao do vao ben phai so be ta duoc so lon
cho 2 so tu nhien co 2 chu so. biet so lon hon so be 16 don vi. ghep 2 so do ben canh nhau ta duoc 2 so co 4 chu so co tong la 5454 . tim so lon
cho 1 so co 2 chu so va 1 so co 3 chu so .ti so cua 2 so do la 3/7.Tim 2 so do,biet rang neu viet them chu so 1 va ben phai so be thi duoc so lon
tim 2 so ,biet hieu cua 2 so do la 82 va neu viet 1 chu so nao do vao ben phai so be ta duoc so lon
2 so thap phan co hieu la 69,21.tim 2 so biet roi dau phay cua so nho sang ben phai 1 hang thi duoc so lon
tong 2 so la 750. neu them chu so 2 vao ben phai so be ta duoc so lon. tim so lon