Ответ:\(21 : 3 = 7\)\(4 \cdot 3 = 12\)\(6 : 3 = 2\)\(6 \cdot 3 = 18\)\(9 : 3 = 3\)\(12 : 3 = 4\)\(15 : 3 = 5\)\(8 \cdot 3 = 24\)\(18 : 3 = 6\)\(1 \cdot 3 = 3\)\(27 : 3 = 9\)