分析:(1)先算除法,再算減法;
(2)先算除法,再算乘法,最后算加法;
(3)先算小括號(hào)里面的減法,再算括號(hào)外的減法,最后算加法;
(4)先算乘法,再根據(jù)加法交換律簡(jiǎn)算;
(5)先同時(shí)運(yùn)算小括號(hào)里面的加法和減法,再算括號(hào)外的除法;
(6)先算小括號(hào)里面的除法,再算小括號(hào)里面的加法,最后算括號(hào)外的減法.
解答:解:(1)456-156÷3,
=456-52,
=404;
(2)35+125÷5×6,
=35+25×6,
=35+120,
=155;
(3)92.74-(16.8-4.3)+0.91,
=92.74-12.5+0.91,
=80.24+0.91,
=81.15;
(4)629-9×8+71,
=629-72+71,
=629+71-72,
=700-72,
=628;
(5)(328+28)÷(32-28),
=356÷4,
=89;
(6)200-(64+540÷18),
=200-(64+30),
=200-94,
=106.
點(diǎn)評(píng):本題考查了簡(jiǎn)單的四則混合運(yùn)算,計(jì)算時(shí)先理清楚運(yùn)算順序,根據(jù)運(yùn)算順序逐步求解即可.