Условие:

Вычисли.
50 − (5 * 4)
(7 * 4) − 16
(3 * 4) + 25
0 * (4 * 7)
8 * (4 * 1)
(3 * 3) * 3

50 − (5 * 4) = 30
(7 * 4) − 16 = 12
(3 * 4) + 25 = 37
0 * (4 * 7) = 0
8 * (4 * 1) = 32
(3 * 3) * 3 = 27
Вычисления:
50 − (5 * 4) = 50 − 20 = 30
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}50\\ 20\end{array}}\\ \begin{array}{r}30\end{array}\end{array}$
(7 * 4) − 16 = 28 − 16 = 12
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}28\\ 16\end{array}}\\ \begin{array}{r}12\end{array}\end{array}$
(3 * 4) + 25 = 12 + 25 = 37
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}12\\ 25\end{array}}\\ \begin{array}{r}37\end{array}\end{array}$
0 * (4 * 7) = 0 * 28 = 0
8 * (4 * 1) = 8 * 4 = 32
(3 * 3) * 3 = 9 * 3 = 27