+amp;285amp;amp;146amp;776amp;
\( \begin{aligned} &285 \\ +& \\ &146 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &157 \\ +& \\ &264 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &463 \\ +& \\ &378 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)\( \)
\( \begin{aligned} &378 \\ +& \\ &455 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
\( \begin{aligned} &589 \\ +& \\ &263 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
431
421
841
833
852
\( \begin{aligned} &677 \\ +& \\ &234 \\ &\underline{\phantom{776}} & \\ \end{aligned} \)
911