1. $\begin{array}{r}
&1\\
&2\\
+\!\!\!\!\!\,&3\\
\hline
\end{array}$
2. $\begin{array}{r}
&2\\
&4\\
+\!\!\!\!\!\,&5\\
\hline
\end{array}$
3. $\begin{array}{r}
&4\\
&5\\
+\!\!\!\!\!\,&8\\
\hline
\end{array}$
4. $\begin{array}{r}
&5\\
&2\\
+\!\!\!\!\!\,&6\\
\hline
\end{array}$
5. $\begin{array}{r}
&3\\
&7\\
+\!\!\!\!\!\,&5\\
\hline
\end{array}$
6. $\begin{array}{r}
&2\\
&4\\
+\!\!\!\!\!\,&6\\
\hline
\end{array}$
7. $\begin{array}{r}
&9\\
&1\\
+\!\!\!\!\!\,&2\\
\hline
\end{array}$
8. $\begin{array}{r}
&4\\
&5\\
+\!\!\!\!\!\,&6\\
\hline
\end{array}$
9. $\begin{array}{r}
&6\\
&7\\
+\!\!\!\!\!\,&8\\
\hline
\end{array}$
10. $\begin{array}{r}
&2\\
&9\\
+\!\!\!\!\!\,&1\\
\hline
\end{array}$
&1\\
&2\\
+\!\!\!\!\!\,&3\\
\hline
\end{array}$
2. $\begin{array}{r}
&2\\
&4\\
+\!\!\!\!\!\,&5\\
\hline
\end{array}$
3. $\begin{array}{r}
&4\\
&5\\
+\!\!\!\!\!\,&8\\
\hline
\end{array}$
4. $\begin{array}{r}
&5\\
&2\\
+\!\!\!\!\!\,&6\\
\hline
\end{array}$
5. $\begin{array}{r}
&3\\
&7\\
+\!\!\!\!\!\,&5\\
\hline
\end{array}$
6. $\begin{array}{r}
&2\\
&4\\
+\!\!\!\!\!\,&6\\
\hline
\end{array}$
7. $\begin{array}{r}
&9\\
&1\\
+\!\!\!\!\!\,&2\\
\hline
\end{array}$
8. $\begin{array}{r}
&4\\
&5\\
+\!\!\!\!\!\,&6\\
\hline
\end{array}$
9. $\begin{array}{r}
&6\\
&7\\
+\!\!\!\!\!\,&8\\
\hline
\end{array}$
10. $\begin{array}{r}
&2\\
&9\\
+\!\!\!\!\!\,&1\\
\hline
\end{array}$
