%@Dif:3 Convertis les volumes suivants dans les unités de volumes données : \[\Eqalign{ 11~\mbox{m}^3&=\ldots~\mbox{dam}^3\kern1cm&20~\mbox{m}^3&=\ldots~\mbox{hm}^3\kern1cm&31~\mbox{m}^3&=\ldots~\mbox{dm}^3\cr 6,5~\mbox{hm}^3&=\ldots~\mbox{dam}^3&5,15~\mbox{hm}^3&=\ldots~\mbox{cm}^3&3,05~\mbox{hm}^3&=\ldots~\mbox{km}^3\cr \cr 4,9~\mbox{dam}^3&=\ldots~\mbox{m}^3&0,49~\mbox{cm}^3&=\ldots~\mbox{mm}^3&94~\mbox{cm}^3&=\ldots~\mbox{dam}^3\cr 2,71~\mbox{dm}^3&=\ldots~\mbox{mm}^3&7,21~\mbox{dm}^3&=\ldots~\mbox{hm}^3&4,7~\mbox{dm}^3&=\ldots~\mbox{hm}^3\cr }\]