327 кг + 268 кг = 595 кг
45 л + 126 л = 171 л
848 г + 95 г = 943 г
364 м + 86 м = 450 м
$435с{м}^2$ + $193с{м}^2$ = $628с{м}^2$
5 кг 325 г + 1 кг 468 г = 6 кг 793 г
Вычисления:
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}327\\ 268\end{array}}\\ \begin{array}{r}595\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}45\\ 126\end{array}}\\ \begin{array}{r}171\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}848\\ 95\end{array}}\\ \begin{array}{r}943\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}364\\ 86\end{array}}\\ \begin{array}{r}450\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}435\\ 193\end{array}}\\ \begin{array}{r}628\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}325\\ 468\end{array}}\\ \begin{array}{r}793\end{array}\end{array}$