$\begin{array}{r}\mathrm{340,52}\\ +\phantom{1}\mathrm{58,27}\\ \phantom{-0}\mathrm{398,79}\end{array}$

$\begin{array}{r}\phantom{-}236375\\ -\phantom{1}21564\\ \text{1}\phantom{\text{.}\text{.}\text{.}\text{.}\text{.}\text{.}\text{.}\text{.}\text{.}\text{.}}\\ 214811\end{array}$

$\begin{array}{r}5064\cdot 4\\ 20046\phantom{00}\\ \text{2}\text{1}\phantom{\text{0}\text{0}\text{0}\text{0}\text{0}\text{0}}\\ 20256\phantom{00}\end{array}$