(9 + 347) − (600 − 308) = 64
(925 − 154) − (530 − 215) = 456
(678 − 87) + (47 + 94) = 732
(504 − 386) + (208 − 169) = 157
Вычисления:
(9 + 347) − (600 − 308) = 356 − 292 = 64
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}9\\ 347\end{array}}\\ \begin{array}{r}356\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}600\\ 308\end{array}}\\ \begin{array}{r}292\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}356\\ 292\end{array}}\\ \begin{array}{r}64\end{array}\end{array}$
(925 − 154) − (530 − 215) = 771 − 315 = 456
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}925\\ 154\end{array}}\\ \begin{array}{r}771\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}530\\ 215\end{array}}\\ \begin{array}{r}315\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}771\\ 315\end{array}}\\ \begin{array}{r}456\end{array}\end{array}$
(678 − 87) + (47 + 94) = 591 + 141 = 732
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}678\\ 87\end{array}}\\ \begin{array}{r}591\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}47\\ 94\end{array}}\\ \begin{array}{r}141\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}591\\ 141\end{array}}\\ \begin{array}{r}732\end{array}\end{array}$
(504 − 386) + (208 − 169) = 118 + 39 = 157
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}504\\ 386\end{array}}\\ \begin{array}{r}118\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}208\\ 169\end{array}}\\ \begin{array}{r}39\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}118\\ 39\end{array}}\\ \begin{array}{r}157\end{array}\end{array}$