Ответ:
\(6 \cdot 9 = 54\); \(9 \cdot 5 = 45\); \(6 \cdot 7 = 42\).
\(42 : 6 = 7\); \(35 : 7 = 5\); \(48 : 8 = 6\).
\(18 : 2 + 7 \cdot 3 = 9 + 21 = 30\).
\(6 \cdot 5 - 24 : 3 = 30 - 8 = 22\).
\(21 : 3 - 35 : 5 = 7 - 7 = 0\).
\(6 \cdot 4 = 24\); \(4 \cdot 8 = 32\); \(8 \cdot 5 = 40\).
\(83 - 65 = 18\); \(17 + 46 = 63\); \(52 + 39 = 91\).
