571 + 9 * 3 − 164 + 36 = 470
56 : 7 * 0 + 600 − 350 = 250
64 : 8 : 4 : 2 + 2 * 4 * 8 = 65
950 − (451 + 49) − 9 = 441
Вычисления:
571 + 9 * 3 − 164 + 36 = 470
1) 9 * 3 = 27
2) 571 + 27 = 598
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}571\\ 27\end{array}}\\ \begin{array}{r}598\end{array}\end{array}$
3) 598 − 164 = 434
4) 434 + 36 = 470
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}434\\ 36\end{array}}\\ \begin{array}{r}470\end{array}\end{array}$
56 : 7 * 0 + 600 − 350 = 250
1) 56 : 7 * 0 = 0
2) 0 + 600 = 600
3) 600 − 350 = 250
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}600\\ 350\end{array}}\\ \begin{array}{r}250\end{array}\end{array}$
64 : 8 : 4 : 2 + 2 * 4 * 8 = 65
1) 64 : 8 = 8
2) 8 : 4 = 2
3) 2 : 2 = 1
4) 2 * 4 = 8
5) 8 * 8 = 64
6) 1 + 64 = 65
950 − (451 + 49) − 9 = 441
1) 451 + 49 = 500
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}451\\ 49\end{array}}\\ \begin{array}{r}500\end{array}\end{array}$
2) 950 − 500 = 450
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}950\\ 500\end{array}}\\ \begin{array}{r}450\end{array}\end{array}$
3) 450 − 9 = 441
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}450\\ 9\end{array}}\\ \begin{array}{r}441\end{array}\end{array}$