\[\boxed{\mathbf{59.}}\]
\[256 - 200 = 56\]
\[256 - 50 = 206\]
\[256 - 6 = 250\]
\[317 - 300 = 17\]
\[317 - 10 = 307\]
\[317 - 7 = 310\]
\[564 - 500 = 64\]
\[564 - 60 = 504\]
\[564 - 4 = 560\]
\[829 - 800 = 29\]
\[829 - 20 = 809\]
\[829 - 9 = 820\]