tong cua hai so la 638 tim so lon biet neu xoa chu so 5 o hang tram cua so co hieu la 15 don vi vay so be la........
tong cua hai so la 1385 hieu cua hai so la 247 vay so lon la.....
tim hai so tu nhien , biet rang tong cua hai so la 200 , hieu la 48 , tim so lon , tim so be
tong cua hai so la so lon nhat co 3 chu so hieu hai so do la so le nho nhat co 3 chu so vay so lon la...............
hieu cua hai so la 20 neu so lon la 60 thi tong la bao nhieu
giup minh
tong hai so bang 372, hieu hai so do bang 48, so be la;
hieu 2 so bang 2 lan so be tong 2 so la so lon nhat co 4 chu so kac nhâu tim so lon
hieu cua 2 so la 80; neu them vao so lon 4dv va them vao so be 14dv thi duoc 2 so co ti la 2/7. tong cua 2 so do bang
hieu cua 2 so bang 2 lan so be .tong 2 so do la so lon nhat co 4 chu so khac nhau . tim so lon