So 2845 viet ra so la ma nhu the nao ?
40 viet so la ma nhu the nao?
100 viet duoi dang so la ma nhu the nao?
so 46 duoc viet trong he so la ma la
ban hung viet day so le 1;3;5;7;...de danh so trang 1 cuon sach. tinh xem chu so thu 200 ma hung viet la chu so nao?
viet lien tiep so tu nhien thanh day 123456789......n .Hoi chu so thu 2015 la so nao ?
viet cac so sau thanh so la ma
46;28;2002;2001;2015;2016
mot ban hoc sinh viet lien tiep cac so tu nhien ma khi chia cho3 thi du 2 bat dau tu so5 thanh day so .viet den so hang thu 100 thi ban ay da viet sai .hoi ban ay da viet sai so nao
mot so tu nhien co ba chu so thay doi nhu the nao neu ta viet them chu so 3 vao truoc so do?