Условие:

Вычисли.
800 − (42 + 50 + 8 + 93)
501 − (160 + 274 + 40)
(31 + 19 + 493 + 7) − (164 + 84 + 36)
(59 + 11 + 140) − (59 + 140)

800 − (42 + 50 + 8 + 93) = 607
501 − (160 + 274 + 40) = 27
(31 + 19 + 493 + 7) − (164 + 84 + 36) = 266
(59 + 11 + 140) − (59 + 140) = 11
Вычисления:
800 − (42 + 50 + 8 + 93) = 800 − (42 + 8 + 50 + 93) = 800 − (50 + 143) = 800 − 193 = 607
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}50\\ 93\end{array}}\\ \begin{array}{r}143\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}50\\ 143\end{array}}\\ \begin{array}{r}193\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}800\\ 193\end{array}}\\ \begin{array}{r}607\end{array}\end{array}$
501 − (160 + 274 + 40) = 501 − (160 + 40 + 274) = 501 − (200 + 274) = 501 − 474 = 27
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}160\\ 40\end{array}}\\ \begin{array}{r}200\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}200\\ 274\end{array}}\\ \begin{array}{r}474\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}501\\ 474\end{array}}\\ \begin{array}{r}27\end{array}\end{array}$
(31 + 19 + 493 + 7) − (164 + 84 + 36) = (50 + 500) − (164 + 36 + 84) = (50 + 500) − (200 + 84) = 550 − 284 = 266
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}31\\ 19\end{array}}\\ \begin{array}{r}50\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}493\\ 7\end{array}}\\ \begin{array}{r}500\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}164\\ 36\end{array}}\\ \begin{array}{r}200\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}50\\ 500\end{array}}\\ \begin{array}{r}550\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}200\\ 84\end{array}}\\ \begin{array}{r}284\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}550\\ 284\end{array}}\\ \begin{array}{r}266\end{array}\end{array}$
(59 + 11 + 140) − (59 + 140) = (70 + 140) − (59 + 140) = 210 − 199 = 11
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}59\\ 11\end{array}}\\ \begin{array}{r}70\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}70\\ 140\end{array}}\\ \begin{array}{r}210\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}59\\ 140\end{array}}\\ \begin{array}{r}199\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}210\\ 199\end{array}}\\ \begin{array}{r}11\end{array}\end{array}$