Ответ:

\(17 + 7 = 24\).

\(47 - 9 = 38\).

\(60 - 24 = 36\).

\(90 - (32 + 8) = 90 - 40 = 50\).

\(24 + 9 = 33\).

\(41 - 3 = 38\).

\(70 - 53 = 17\).

\(70 + (60 - 40) = 70 + 20 = 90\).