\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{247}\\{351}\end{array}}\\\hline{\,\,\,598}\end{array}\) \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{703}\\{204}\end{array}}\\\hline{\,\,\,907}\end{array}\)
\(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{526}\\{\,\,\,32}\end{array}}\\\hline{\,\,\,558}\end{array}\) \(\begin{array}{*{20}{c}}{ + \begin{array}{*{20}{c}}{815}\\{\,\,\,60}\end{array}}\\\hline{\,\,\,875}\end{array}\)