1. $\begin{array}{r} &4\\ +\!\!\!\!\!\,&1\\ \hline \end{array}$

2. $\begin{array}{r} &6\\ +\!\!\!\!\!\,&2\\ \hline \end{array}$

3. $\begin{array}{r} &3\\ +\!\!\!\!\!\,&4\\ \hline \end{array}$

4. $\begin{array}{r} &2\\ +\!\!\!\!\!\,&7\\ \hline \end{array}$

5. $\begin{array}{r} &3\\ +\!\!\!\!\!\,&5\\ \hline \end{array}$

6. $\begin{array}{r} &6\\ +\!\!\!\!\!\,&3\\ \hline \end{array}$

7. $\begin{array}{r} &9\\ +\!\!\!\!\!\,&1\\ \hline \end{array}$

8. $\begin{array}{r} &8\\ +\!\!\!\!\!\,&2\\ \hline \end{array}$

9. $\begin{array}{r} &4\\ +\!\!\!\!\!\,&6\\ \hline \end{array}$

10. $\begin{array}{r} &5\\ +\!\!\!\!\!\,&5\\ \hline \end{array}$

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