Tong hai so tu nhien bang 3013.Tim so lon ,biet giua hai so do co tat ca la 20 so tu nhien chan .Tim so do
tim hai so tu nhien co tong la 2009/tim hai so do biet giua chung co 20 so chan
tong cua 2 so la 2015 tim so be biet rang giua hai so do co 24 so chan
tim 2 so tu nhien chan biet tong cua chung la 170 va giua 2 so chan do co 12 so chan
TONG CUA HAI SO LA SO 150.TIM HAI SO DO,BIET GIUA CHUNG CO 3 SO TU NHIEN KHAC
tim hai so tu nhien biet tong cua chung bang 2011 va biet giua chung co tat ca 9 so chan.
tong hai so tu nhien bang 2015 . tim so be biet giua 2 so do co 48 chu so chan?
tong cua hai so le bang 884 . tim hai so do , biet rang giua chung co 7 so chan liên tiep nua ?
cho hai so co tong la 2008.tim hai so do biet giua chung co 17 so tu nhien khac