Задание

Расставьте знаки в произведениях:

\(\displaystyle \times\) \(\displaystyle -4\) \(\displaystyle -5\)
\(\displaystyle -7\) [?||-]\(\displaystyle 28\) [?||-]\(\displaystyle 35\)
\(\displaystyle 2\) [?||-]\(\displaystyle 8\) [?||-]\(\displaystyle 10\)