tim so tu nhien co 2 chu so biet tong 2chu so bang 8 va hieu 2 so bang 4 -
tim hai so co tong bang 71 biet rang neu ta lấy số lon ghep vao ben trai vao bên phải của sô bé ta duoc hai co bon chu so va hieu chung bang 2079
tim hai so tu nhien biet tong cua chung bang 636 va gia chung co tat ca 11 so tu nhien
tim hai so tu nhien , biet tong cua chung bang 2015 va biet giua chung co 20 so tu nhien khac
Tim hai so co 2 chu so biet tong hai chu so cua so do bang 9 va hieu cua hai so do bang 3
Tim hai so biet tong hai so bang so lon nhat co 3 chu so va hieu cua chung bang so lon nhat co 2 chu so?
Tim hai so biet tong cua chung bang so lon nhat co ba chu so va hieu cua hai so do bang so lon nhat co hai chu so
tim hai so,biet tong cua chung bang so lon nhat co hai chu so va hieu cua chung bang tich cua hai chu so do
tim hai so tu nhien biet tong cua chung bang 871 va biet giua chung co tat ca 18 so