(9 * 7) − 48 = 15 − верно
(6 * 6) + (8 * 8) = 100 − верно
100 − (35 + 44) = 31 − неверно, верно будет: 100 − (35 + 44) = 21
(41 − 36) * (72 : 8) = 45 − верно
Вычисления:
(9 * 7) − 48 = 63 − 48 = 15
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}63\\ 48\end{array}}\\ \begin{array}{r}15\end{array}\end{array}$
(6 * 6) + (8 * 8) = 36 + 64 = 100
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}36\\ 64\end{array}}\\ \begin{array}{r}100\end{array}\end{array}$
100 − (35 + 44) = 100 − 79 = 21
$\begin{array}{r}\begin{array}{r}+\end{array}\underline{\begin{array}{r}35\\ 44\end{array}}\\ \begin{array}{r}79\end{array}\end{array}$
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}100\\ 79\end{array}}\\ \begin{array}{r}21\end{array}\end{array}$
(41 − 36) * (72 : 8) = 5 * 9 = 45
$\begin{array}{r}\begin{array}{r}-\end{array}\underline{\begin{array}{r}41\\ 36\end{array}}\\ \begin{array}{r}5\end{array}\end{array}$