15 + (92 − 48) = 59
6 * 8 + 24 = 72
36 + 7 * 7 = 85
54 : 9 + 79 = 85
Вычисления:
15 + (92 − 48) = 15 + 44 = 59
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}92\\ 48\end{array}}\\ \begin{array}{r}44\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}15\\ 44\end{array}}\\ \begin{array}{r}59\end{array}\end{array}$
6 * 8 + 24 = 48 + 24 = 72
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}48\\ 24\end{array}}\\ \begin{array}{r}72\end{array}\end{array}$
36 + 7 * 7 = 36 + 49 = 85
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}36\\ 49\end{array}}\\ \begin{array}{r}85\end{array}\end{array}$
54 : 9 + 79 = 6 + 79 = 85
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}6\\ 79\end{array}}\\ \begin{array}{r}85\end{array}\end{array}$