(362 + 526) − 270 = 618
Вычисления:
(362 + 526) − 270 = 888 − 270 = 618
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}362\\ 526\end{array}}\\ \begin{array}{r}888\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}888\\ 270\end{array}}\\ \begin{array}{r}618\end{array}\end{array}$

(900 − 456) + 305 = 749
Вычисления:
(900 − 456) + 305 = 444 + 305 = 749
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}900\\ 456\end{array}}\\ \begin{array}{r}444\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}444\\ 305\end{array}}\\ \begin{array}{r}749\end{array}\end{array}$

(457 − 96) − (801 − 795) = 355
Вычисления:
(457 − 96) − (801 − 795) = 361 − 6 = 355
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}457\\ 96\end{array}}\\ \begin{array}{r}361\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}801\\ 795\end{array}}\\ \begin{array}{r}6\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}361\\ 6\end{array}}\\ \begin{array}{r}355\end{array}\end{array}$