3+(3-5)*678-645-45+3409

Question

3+(3-5)*678-645-45+3409

Answer 1

1)3-5=-2
2)-2*678=-1356
3)3+(-1356)=-1353
4)-1353-645=-1998
5)-1998-45=-2043
6)-2043+3409=1366
Ответ:1366