42 − (6 * 7) = 0
35 + (81 : 9) = 44
(62 + 9) − 13 = 58
80 − (44 + 36) = 0
81 : (3 * 3) = 9
(100 − 96) * 8 = 32
Вычисления:
42 − (6 * 7) = 42 − 42 = 0
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}42\\ 42\end{array}}\\ \begin{array}{r}0\end{array}\end{array}$
35 + (81 : 9) = 35 + 9 = 44
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}35\\ 9\end{array}}\\ \begin{array}{r}44\end{array}\end{array}$
(62 + 9) − 13 = 71 − 13 = 58
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}71\\ 13\end{array}}\\ \begin{array}{r}58\end{array}\end{array}$
80 − (44 + 36) = 80 − 80 = 0
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}44\\ 36\end{array}}\\ \begin{array}{r}80\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}80\\ 80\end{array}}\\ \begin{array}{r}0\end{array}\end{array}$
81 : (3 * 3) = 81 : 9 = 9
(100 − 96) * 8 = 4 * 8 = 32
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}100\\ 96\end{array}}\\ \begin{array}{r}4\end{array}\end{array}$