Answer :
[tex]\frac{1}{10} \cdot 0.003=\frac{1}{10} \cdot \frac{3}{1000}= \frac{3}{10 000}=0.0003[/tex]
[tex]\frac{1}{10}=0.1\\\\\frac{1}{10}\times0.003=0.1\times0.003=0.0003[/tex]