\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{49}\\{34}\end{array}}\\\hline{\,\,\,\,83}\end{array}\) \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{58}\\{23}\end{array}}\\\hline{\,\,\,81}\end{array}\) \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{37}\\{46}\end{array}}\\\hline{\,\,\,\,83}\end{array}\)
\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{68}\\{\,\,\,7}\end{array}}\\\hline{\,\,\,\,75}\end{array}\) \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{79}\\{\,\,6}\end{array}}\\\hline{\,\,\,85}\end{array}\) \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{\,\,\,7}\\{84}\end{array}}\\\hline{\,\,\,\,91}\end{array}\)
