\( \begin{array}{c@{\ \ } c} \; 28 & \\ +\; 16 & \\ \hline \; 44 & \end{array} \)
\( \begin{array}{c@{\ \ } c} \; 35 & \\ +\; 47 & \\ \hline \; 82 & \end{array} \)
\( \begin{array}{c@{\ \ } c} \; 42 & \\ -\; 25 & \\ \hline \; 17 & \end{array} \)
\( \begin{array}{c@{\ \ } c} \; 80 & \\ -\; 39 & \\ \hline \; 41 & \end{array} \)
Ответ: 44, 82, 17, 41.