\[\boxed{\mathbf{76.}}\]
\[\textbf{а)}\ 8 \cdot 2 = 16\]
\[\textbf{б)}\ 8\ :4 = 2\]
\[\textbf{в)}\ 8 \cdot ( - 3) = - 24\]
\[\textbf{г)}\ 8\ :( - 3) = - \frac{8}{3}\]