Условие:

Вычисли.
6 * (72 − 63)
(17 + 37) : 9
(24 : 6) * 8
7 * (56 − 47)
(32 + 40) : 9
700 − (82 + 364)
(801 − 765) : 6
(920 − 839) : 9
(45 : 5) * 3
72 : (36 : 4)

6 * (72 − 63) = 54
(17 + 37) : 9 = 6
(24 : 6) * 8 = 32
7 * (56 − 47) = 63
(32 + 40) : 9 = 8
700 − (82 + 364) = 27
(801 − 765) : 6 = 9
(920 − 839) : 9 = 6
(45 : 5) * 3 = 254
72 : (36 : 4) = 8
Вычисления:
6 * (72 − 63) = 6 * 9 = 54
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}72\\ 63\end{array}}\\ \begin{array}{r}9\end{array}\end{array}$
(17 + 37) : 9 = 54 : 9 = 6
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}17\\ 37\end{array}}\\ \begin{array}{r}54\end{array}\end{array}$
(24 : 6) * 8 = 4 * 8 = 32
7 * (56 − 47) = 7 * 9 = 63
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}56\\ 47\end{array}}\\ \begin{array}{r}9\end{array}\end{array}$
(32 + 40) : 9 = 72 : 9 = 8
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}32\\ 40\end{array}}\\ \begin{array}{r}72\end{array}\end{array}$
(45 : 5) * 3 = 9 * 3 = 27
(920 − 839) : 9 = 81 : 9 = 9
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}920\\ 839\end{array}}\\ \begin{array}{r}81\end{array}\end{array}$
(801 − 765) : 6 = 36 : 6 = 6
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}801\\ 765\end{array}}\\ \begin{array}{r}36\end{array}\end{array}$
700 − (82 + 364) = 700 − 446 = 254
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}82\\ 364\end{array}}\\ \begin{array}{r}446\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}700\\ 446\end{array}}\\ \begin{array}{r}254\end{array}\end{array}$
72 : (36 : 4) = 72 : 9= 8