tim mot so co ba chu so biet rang neu viet them chu so 5 vao ben trai so do thi ta duoc so moi ma tong cua so moi va so da cho bang 5472. so phai tim la......

tim mot so tu nhien co hai chu so biet neu viet them mot chu so 0 vao ben phai va mot chu so 1 vao ben trai so do thi ta duoc so moi bang 50 la so phai tim

tim 1 so tu nhien co2 chu so. biet neu viet them 1 chu so 0 vao ben phai va viet them 1 chu so1 vao ben trai so do thi ta duoc mot so moi bang 50 lan so phai tim.

cho so co 2 chu so ma so lon bang 3 lan so be. neu dem so be viet them vao ben phai va ben trai so lon ta duoc hai so moi moi so 4 co 4 chu so. tong cua 2 so co 4 chu so do bang 4848. tim 2 so  da cho

Tìm so tu nhien co 3 chu so biet neu viet them chu so 3 vao ben trai so do thi duoc so moi ma tong so moi phai tim la 46907

tim mot so tu nhien co hgaichu so biet,neu viet them mot chu so 0 vao ben phai va mot chu so 1 vao ben trai so do thi ta duoc mot so moi bang 50 lan so phai tim

cho so co 2 chu so neu ta viet them vao ben phai hoac ben trai chinh so do thi ta duoc so moi va tong cua so moi voi so da cho bang 2754 tim so da cho

Tim so tu nhien co 2 chu so biet neu viet them chu so 1 vao ben phai so do ta duoc tong so moi va so do la 980 .

tim 1 so tu nhien co 2 chu so biet neu viet them chu so 0 vao ben phai va 1 chu so 1 vao ben trai so do thi ta duoc mot so moi bang 50 lan so phai tim?

cac ban giup minh voi minh dang can gap