Looking for pattern and complete the following

1 x 8 + 1 = ______________;

12 x 8 + 2 = ______________;

123 x 8 + 3= ______________;

1234 x 8 + 4= ______________;

12345 x 8 + 5= ______________;

_________________= ______________;

_________________= ______________;

_________________= ______________;

_________________= ______________.