In which of these number does $4$ stands for $400$?

Find the sum of the place values of $3$ in $38,143$.

Find the sum of the place values of $3$ in $3,387$.

Find the sum of the place values of $3$ in $2,393$.

Find the sum of the place values of $3$ in $35,397$.

Find the sum of the place values of $3$ in $33,265$. 

Find the sum of the place values of $3$ in $38,333$.

Find the difference of the place values of $6$ in $7,606$.

Find the difference of the place values of $6$ in $6,326$.