Question

Replace each * by the correct digit in the following:

\[\begin{array}{r}
&\texttt{9 1 7}\\
-&\texttt{* 5 *}\\
\hline
&\texttt{5 * 8}
\end{array}\]

Answer 1

\[\begin{array}{r}
&\texttt{9 1 7}\\
-&\texttt{3 5 9}\\
\hline
&\texttt{5 5 8}
\end{array}\]