\[\left| 4,965 \cdot 10^{7} - 5,0 \cdot 10^{7} \right| =\]
\[= |4,965 - 5,0| \cdot 10^{7} =\]
\[= | - 0,035| \cdot 10^{7} =\]
\[= 0,035 \cdot 10^{7} = 3,5 \cdot 10^{5}\]