MR-867 / 4e. problem

Simplify the following expression:

0,1-2-0,4022323-3+-13-1

0,1-2-0,4022323-3+-13-1

=110-2-183323+-311

=1012-183·27 8-31

=1001-111·91-31

=100-191-31

=996

=1636

=1612

=16,5