35 + 28 = ...	23 + 48 = ...	23 + 8 = ...	24 + 38 = ...
29 + 53 = ...	24 + 17 = ...	63 + 29 = ...	37 + 44 = ...
15 + 47 = ...	16 + 58 = ...	67 + 7 = ...	28 + 24 = ...
28 + 45 = ...	38 + 28 = ...	35 + 48 = ...	26 + 17 = ...
27 + 18 = ...	38 + 33 = ...	45 + 48 = ...	76 + 18 = ...

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{48}\\{36}\end{array}} \\\,\,\,\,84\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{27}\\{33}\end{array}} \\\,\,\,\,60\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{39}\\{27}\end{array}} \\\,\,\,\,66\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{24}\\{39}\end{array}} \\\,\,\,\,63\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{79}\\{19}\end{array}} \\\,\,\,\,98\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{23}\\{39}\end{array}} \\\,\,\,\,62\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{54}\\{18}\end{array}} \\\,\,\,\,72\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{78}\\{12}\end{array}} \\\,\,\,\,90\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{49}\\{\,\,\,3}\end{array}} \\\,\,\,\,52\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{79}\\{\,\,\,4}\end{array}} \\\,\,\,\,\,83\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{37}\\{\,\,\,7}\end{array}} \\\,\,\,\,44\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{88}\\{\,\,\,9}\end{array}} \\\,\,\,\,97\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{29}\\{\,\,\,8}\end{array}} \\\,\,\,\,37\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{33}\\{\,\,\,9}\end{array}} \\\,\,\,\,42\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{76}\\{\,\,\,5}\end{array}} \\\,\,\,\,\,81\end{array}\)

\(\begin{array}{l}\underline { + \begin{array}{*{20}{c}}{67}\\{\,\,\,6}\end{array}} \\\,\,\,\,73\end{array}\)