Вычисли устно и запиши ответ

а) \(\cfrac{-2+8}{3}=\) [ ];

\(\cfrac{-9+5}{2}=\) [ ];

\(\cfrac{-3-5}{4}=\) [ ];

\(\cfrac{4-10}{5}=\) [ ].

б) \(\cfrac{-36}{-1-11}=\) [ ];

\(\cfrac{-9+9}{2}=\) [ ];

\(\cfrac{-4}{-3+5}=\) [ ];

\(\cfrac{-8}{1-9}=\) [ ].

в) \(\cfrac{-20+4}{4}=\) [ ];

\(\cfrac{-16}{-3-1}=\) [ ];

\(\cfrac{-3-(-6)}{-3}=\) [ ];

\(\cfrac{-7+(-3)}{2}=\) [ ].