\[\boxed{\mathbf{1232}\mathbf{\ (821)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ 5,400 = 5,4 = 5,40 =\]
\[= 5,400000\]
\[2)\ 12,5080 = 12,508 =\]
\[= 12,5080000\]
\[3)\ 0,980 = 0,98 = 0,980000\]