\[\boxed{\mathbf{1.}}\]
\[2 + 2 + 2 + 2 + 2 + 2 + 2 = 14\]
\[2 \cdot 7 = 14\]
\[3 + 3 + 3 + 3 + 3 + 3 = 18\]
\[3 \cdot 6 = 18\]
\[4 + 4 + 4 + 2 + 2 + 2 + 2 + 2 =\]
\[= 12 + 10 = 22\]
\[5 + 5 + 5 + 5 = 20\]
\[5 \cdot 4 = 20\]