\[8^{3}:16^{2} + 4^{3} =\]
\[= 8 \cdot 8 \cdot 8\ :(16 \cdot 16) + 4 \cdot 4 \cdot 4 =\]
\[= 512\ :256 + 64 = 2 + 64 =\]
\[= 66\]