so thu nhat co 1 chu so , neu viet chu so 0 vao ben phai so thu nhat ta duoc so thu hai . So thu hai hon so thu nhat 63 don vi . Tim so thu nhat
So thu nhat co mot chu so, neu viet so 0 vao ben phai so thu nhat ta duoc so thu hai. So thu hai hon so thu nhat 63 don vi. Tim so thu nhat?
trung binh cong cua 3 so la 148 . biet rang neu viet them so chu so 0 vao ben phai so thu nhat thi duoc so thu 2 .viet them so 3 vao ben phai so thu nhat thi duoc so thu 3.tim trung binh cong so thu 1 va so 3
tim so thu nhat biet neu them chu so 3 vao ben trai so thu nhat ta duoc so thu hai gap 7 lan so thu nhat(biet so thu hai co hai chu so)
tong cua hai so la121.neu viet them chu so 0 vao ben phai so thu nhat thi ta duoc so thu hai.tim hai so do?
trung binh cong cua hai so la 46 neu viet them chu so 4 vao ben phai so thu nhat thi duoc so thu hai .tim hai so do
Trung binh cong cua 3 so la 85. Neu them 1 chu so 0 vao ben phai so thu hai thi duoc so thu nhat, neu gap 4 lan so thu hai thi duoc so thu ba. Tim 3 so do.
trung binh cong cua 2 so la 475. neu viet them chu so 4 vao ben phai so thu nhat thi duoc so thu hai . tim so thu 2
tim hai so tu nhien co tong la 254 biet neu viet them mot chu so 0 vao ben phai so thu hai va giu nguyen so thu nhat thi duoc tong moi la 716