so tu nhien lon nhat co cac chu so khac nhau ma tong cac chu so cua no bang 13 la
tim so tu nhien lon nhat co cac chu so khac nhau ma tong cac chu so cua no bang 6.
so tu nhien lon nhat co cac chu so khac nhau ma tong cac chu so cua no bang 30
so tu nhien lon nhat co cac chu so khac nhau ma tong cac chu so cua so do bang 26 la so
Tim so tu nhien lon nhat co cac chu so khac nhau ma tong cac chu so cua no bang 20 .Tim so do ?
so tu nhien lon nhat co ba chu so ma tong cac chu so bang 15 la so nao?
tim so tu nhien lon nhat co 3 chu so biet so do bang tong cua tat ca cac so co 2 chu so duoc lap tu 3 chu so cua so do
so tu nhien lon nhat co cac chu so khac nhau ma tong cac chu so cua so do la 26.
so tu nhien lon nhat co 4 chu so khac nhau ma tong cac chu so bang 21 la so nao