so lon nhat co 4 chu so khac nhau ma tong 4 chu so do bang 22 so do la ..........
so lon nhat co 4 chu so khac nhau ma tong cac chu so bang 20
so lon nhat co 4 chu so khac nhau ma tong cac chu so cua so do bang 10
Tim so lon nhat co 4 chu so khac nhau ma tong cua chung bang 10.
tinh tong cua so lon nhat co ba chu so ma tong ba chu so la 20 va so nho nhat co 4 chu so khac nhau
so lon nhat co hai chu so ma tong hai chu so do bang 7
so tu nhien lon nhat co 2 chu so ma tong cac chu so chu so bang 7
so lon nhat co 3 chu so ma tong cac chu so do bang 24 la so ?
viet so lon nhat co 3 chu so ma tong bang 15