§ Задание 7
\[\boxed{\mathbf{7.}}\]
\[2 \cdot 6 = 12\]
\[12\ :2 = 6\]
\[2 \cdot 7 = 14\]
\[14\ :2 = 7\]
\[2 \cdot 8 = 16\]
\[16\ :2 = 8\]
\[2 \cdot 9 = 18\]
\[18\ :2 = 9\]
\[\boxed{\mathbf{7.}}\]
\[2 \cdot 6 = 12\]
\[12\ :2 = 6\]
\[2 \cdot 7 = 14\]
\[14\ :2 = 7\]
\[2 \cdot 8 = 16\]
\[16\ :2 = 8\]
\[2 \cdot 9 = 18\]
\[18\ :2 = 9\]