\[\boxed{\text{33.}}\]
\[30 \cdot (500 - 496) = 30 \cdot 4 = 120\]
\[800\ :(601 - 593) = 800\ :8 =\]
\[= 100\]
\[490\ :(500 - 493) = 490\ :7 =\]
\[= 70\]
\[10 \cdot (427 - 400) = 10 \cdot 27 =\]
\[= 270\]
\[(582 + 138) = 720\ :8 = 90\]
\[600\ :(505 - 499) = 600\ :6 =\]
\[= 100\]
\[\boxed{\text{34.}}\]
\[13\ слонов;50\ мин;1\ сут.;\]
\[900\ кг;\ 3\ года;4\ м;1000\ кг;\]
\[50\ лет.\]