365 + 142 = 507
365 + 365 = 730
365 + 407 = 772
Вычисления:
365 + 142 = 507
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}365\\ 142\end{array}}\\ \begin{array}{r}507\end{array}\end{array}$
365 + 365 = 730
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}365\\ 365\end{array}}\\ \begin{array}{r}730\end{array}\end{array}$
365 + 407 = 772
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}365\\ 407\end{array}}\\ \begin{array}{r}772\end{array}\end{array}$